referring now to the drawings , and in particular to fig1 - 7 , a grip training device is shown to comprise in a first embodiment a baseball , generally indicated at 101 ( broadly , “ a body ”), having a cover portion 103 and a seam 105 . the grip training device further comprises finger position indicia generally indicated at 107 . the cover portion 103 and the seam portion 105 may be formed like a conventional baseball , but may be formed as a single piece of material with the baseball 101 . the seam portion 105 may be , for example , a raised part of the baseball 101 made to simulate the appearance of sewn on seams . seams ( not shown ) could be illustrated by printed markings on the surface of the ball that are not raised . moreover , the seams could be entirely omitted within the scope of the present invention . the cover portion 103 is considered in the illustrated embodiment to be the outer surface of the baseball 101 away from the seam portion . it should also be noted that the balls and grip positions depicted herein and throughout the application are for a right - handed thrower . as would be readily understood by one skilled in the art , the exemplary embodiments of the present invention can be readily applied to left - handed throwers , such as by producing balls having a mirror image of the balls depicted herein . the baseball 101 of the first embodiment is adapted for training a user to grip a baseball for properly throwing a two - seam fastball pitch . a hand h on the baseball 101 in the proper grip position using the finger position indicia 107 . the grip for throwing a two - seam fastball requires that the user place his index and middle finger on respective baseball seams at the point where the seams are closest to one another , such as is depicted in fig1 . to aid the user in developing the proper grip , the baseball of the first exemplary embodiment includes the finger position indicia 107 specifically demonstrating where the user should place his fingers . in this example , the finger position indicia take the form of surface depressions of sufficient depth , width , and length to be easily felt and seen by the user . these depressions 107 are sized and shaped to receive and guide the fingers of the user to the correct position and orientation on the ball . in the exemplary first embodiment shown , surface depressions are included for the index finger 107 i , the middle finger 107 m , the thumb 107 t , and the ring finger 107 r ( see fig5 ) of the user . generally , any portion of the hand that touches the baseball 101 as part of the grip , including any digit and any portion of the palm of the hand touching the ball , may be included as a feature on the surface of the ball . the corresponding parts of all embodiments of the grip training device will be given the same base reference numerals for all of the embodiments illustrated herein , but will be increased by “ 100 ” for each successive embodiment . the depth , width , and length of the depressions 107 may be varied to compensate for the size of the user &# 39 ; s hands . for example , different baseballs for users with small , medium , or large hands may be provided without departing from the scope of embodiments of the present invention . moreover , as a user becomes more skilled in selecting the correct grip , the relative prominence of the surface features may be lessened , whereby the user is encouraged to rely upon his own knowledge of the grip , rather than the features included on the ball . for example , a grip training device for a beginner may include deep , channel - like depressions for receiving substantial portions of the fingers , while a grip training device for a more advanced user may include shallow , minimal depressions that serve only as a gentle reminder of the proper finger positioning for the given grip . other surface features may be used alone or in combination with such depressions to demonstrate where the user should place his fingers . for example , the surface of the ball may include finger outlines depicting visually where each finger should lie upon the surface of the ball . the user can readily place his fingers on the ball within the finger outlines to establish a proper grip . additional surface features may include labels noting the location of each finger with appropriate text for instructing the user regarding finger placement . other surface features may include color - coding , such as each finger position indicated by a particular color ( e . g ., thumb blue , index finger yellow , middle finger green , etc .). varying surface textures may also be included to demonstrate finger position . for example , the surface of the ball may be substantially rough , having smooth portions for placement of the fingers , or vice - versa . as noted above , each of these surface features may be used alone or in combination with other features to further demonstrate finger location on the ball . other surface features not listed here are also contemplated as within the scope of embodiments of the invention . as would be readily understood by one skilled in the art , the grip training devices described herein may be utilized to learn grip in two manners . first , the devices may be gripped by the user , without throwing the device , in order to learn the grip . gripping the device without throwing provides a useful memory aid to the user . second , the user may also grip and throw the devices as with a regular ball , thereby using the grip training during throwing . gripping the device while throwing provides a useful throwing training tool to the user . referring now to fig8 - 14 , a baseball 201 of a second exemplary embodiment is depicted . the baseball 201 of the second embodiment is adapted for training a user to grip a baseball for properly throwing a fork ball , or split finger pitch . again , to aid the user in developing the proper grip , the baseball 201 of the second exemplary embodiment includes surface features specifically demonstrating where the user should place his fingers . such features can include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary second embodiment shown , surface depressions 207 are included for the index finger ( 207 i ), the middle finger ( 207 m ), the thumb ( 207 t ), and the ring finger ( 207 r ) of the user . referring now to fig1 - 21 , a baseball 301 of a third exemplary embodiment is depicted . the baseball 301 of the third embodiment is adapted for training a user to grip a baseball for properly throwing a slider . again , to aid the user in developing the proper grip , the baseball 301 of the third exemplary embodiment includes finger position indicia 307 specifically demonstrating where the user should place his fingers . the indicia can include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary third embodiment shown , the finger position indicia comprise surface depressions 307 are included for the index finger 307 i , the middle finger 307 m , the thumb 307 t , and the ring finger 307 r of the user . referring now to fig2 - 28 , a baseball 401 of a fourth exemplary embodiment is depicted . the baseball 401 of the fourth embodiment is adapted for training a user to grip a baseball for properly throwing a four - seam fastball . again , to aid the user in developing the proper grip , the baseball 401 includes finger position indicia 407 specifically demonstrating where the user should place his fingers . the finger position indicia may include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary fourth embodiment shown , the finger position indicia 407 take the form of surface depressions are included for the index finger 407 i , the middle finger 407 m , the thumb 407 t , and the ring finger 407 r of the user . referring now to fig2 - 35 , a baseball 501 of a fifth exemplary embodiment is depicted . the baseball 501 of the fifth embodiment is adapted for training a user to grip a baseball for properly throwing a beginner &# 39 ; s curveball . again , to aid the user in developing the proper grip , the baseball 501 includes finger position indicia 507 specifically demonstrating where the user should place his fingers . the finger position indicia may include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary fifth embodiment shown , the finger position indicia 507 take the form of surface depressions are included for the middle finger 507 m , the thumb 507 t , and the ring finger 507 r of the user . the beginner &# 39 ; s curveball does not have a surface depression for the index finger , showing that the index finger should be left off of the ball as illustrated in fig2 . referring now to fig3 - 42 , a baseball 601 of a sixth exemplary embodiment is depicted . the baseball 601 of the sixth embodiment is adapted for training a user to grip a baseball for properly throwing a standard curveball . again , to aid the user in developing the proper grip , the baseball 601 includes finger position indicia 607 specifically demonstrating where the user should place his fingers . the finger position indicia may include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary sixth embodiment shown , the finger position indicia 607 take the form of surface depressions are included for the index finger 607 i , middle finger 607 m , the thumb 607 t , and the ring finger 607 r of the user . the difference from the baseball 501 of the fifth embodiment is that a surface depression 607 i for the index finger is provided in the baseball 601 . referring now to fig4 - 49 , a baseball 701 of a seventh exemplary embodiment is depicted . the baseball 701 is adapted for training a user to grip a baseball for properly throwing a knuckle curveball . again , to aid the user in developing the proper grip , the baseball 701 includes finger position indicia 707 specifically demonstrating where the user should place his fingers . the finger position indicia may include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary seventh embodiment shown , the finger position indicia 707 take the form of surface depressions are included for the index finger 707 i , middle finger 707 m , the thumb 707 t , and the ring finger 707 r of the user . the depression 707 i for the index finger is preferably shortened and deepened to demonstrate a bending of the index finger at the knuckle characteristic of this pitch . referring now to fig5 - 56 , a baseball 801 of a eighth exemplary embodiment is depicted . the baseball 801 is adapted for training a user to grip a baseball for properly throwing a three finger changeup . again , to aid the user in developing the proper grip , the baseball 801 includes finger position indicia 807 specifically demonstrating where the user should place his fingers . the finger position indicia may include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary eighth embodiment shown , the finger position indicia 807 take the form of surface depressions are included for the index finger 807 i , middle finger 807 m , the thumb 807 t , and the ring finger 807 r of the user . in addition , a depression 807 p for the pinky finger is provided for the three finger changeup . referring now to fig5 - 63 , a baseball 901 of a ninth exemplary embodiment is depicted . the baseball 901 is adapted for training a user to grip a baseball for properly throwing a circle changeup . again , to aid the user in developing the proper grip , the baseball 901 includes finger position indicia 907 specifically demonstrating where the user should place his fingers . the finger position indicia may include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary ninth embodiment shown , the finger position indicia 907 take the form of surface depressions are included for the index finger 907 i , middle finger 907 m , the thumb 907 t , and the ring finger 907 r of the user . in addition ( and like the three finger changeup baseball 801 ), a depression 907 p for the pinky finger is provided . referring now to fig6 - 72 , a baseball 1001 of a tenth exemplary embodiment is depicted . the baseball 1001 is adapted for training a user to grip a baseball for properly throwing a palmball . again , to aid the user in developing the proper grip , the baseball 1001 includes finger position indicia 1007 specifically demonstrating where the user should place his fingers . the finger position indicia may include one or more of surface depressions , finger outlines , descriptive labels , color - coding , and surface textures , among others . in the exemplary tenth embodiment shown , the finger position indicia 1007 take the form of surface depressions are included for the index finger 1007 i , middle finger 1007 m , the thumb 1007 t , and the ring finger 1007 r of the user . in addition , a depression 1007 p for the pinky finger is provided for the palmball . fig7 and 72 are sections of the palmball 1001 to show the general shape of a portion of surface depressions on the palmball . the surface depressions would be similar in shape as for other pitches illustrated herein . fig7 is similar to fig6 in that the baseball 1101 has finger positioning indicia 1107 arranged to show where to position the fingers for throwing a palmball . however , in this embodiment , the finger positioning indicia takes the form of markings on the surface of the baseball 1101 . the markings are not depressed into the surface of the baseball 1101 , and outline at least a portion of the finger to be received in a particular position . the markings including an outline of a portion of the index finger 1107 i , an outline of a portion of the middle finger 1107 m and an outline of a portion of the ring finger 1107 r . other markings ( e . g ., for the thumb and pinky ) could be used , but are not visible in fig7 . moreover , alphanumeric characters ( in this case letters “ i ”, “ m ”, “ r ”) are provided to indicate which fingers are to be positioned at which location . the letters could be used instead of the markings 1107 within the scope of the present invention . as discussed elsewhere , the marking and characters may take on other configurations within the scope of the present invention . as would be readily understood by one skilled in the art , a single ball , such as a baseball , may be adapted to serve as a grip training device for several different pitches . for example , where the surface features are finger outlines , descriptive labels , and / or color - coding , multiple finger positions corresponding to two or more grip positions may be included on a single ball . this combination of surface features allows a single ball to function as a grip training device for multiple pitch types , depending upon which surface features are utilized by the user . the grip training devices may also include other features for enhancing movement , or action , of the ball during flight . such movement - enhancing features will allow the user to see exaggerated movement of the ball in the air , as compared with a conventional baseball , for example , thereby providing feedback regarding whether the ball was properly gripped and / or thrown . such movement - enhancing features may be incorporated into any type of ball , including solid balls and hollow balls ( i . e ., wiffle balls ). for example , a ball may include exaggerated stitching to enhance movement of the ball . the exaggerated stitching can include wider stitching , taller stitching , and / or thicker stitching string , among others . moreover , the enhanced stitching may not be stitched at all , but may instead be surface enhancements to a molded ball , for example . other surface features can include openings in the ball for hollow balls , surface ridges and channels , surface grooving , and surface dimpling , among others . in another example , the depressions discussed above for grip training can also be designed as movement - enhancing features . controlling the depth and width of such depressions can have an impact upon ball movement . generally speaking , these movement - enhancing features may be included over select portions of the ball or over the entire surface of the ball . other movement - enhancing features not specifically discussed here are also contemplated as within the scope of the exemplary embodiments of the invention . when introducing elements of the present invention or the preferred embodiment ( s ) thereof , the articles “ a ”, “ an ”, “ the ” and “ said ” are intended to mean that there are one or more of the elements . the terms “ comprising ”, “ including ” and “ having ” are intended to be inclusive and mean that there may be additional elements other than the listed elements . moreover , the use of “ up ”, “ down ”, “ top ” and “ bottom ” and variations of these terms is made for convenience , but does not require any particular orientation of the components . as various changes could be made in the above without departing from the scope of the invention , it is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense .
a grip training device is used to teach a person the proper grip of a ball in usage . more specifically , the grip training device may take the form of a baseball having finger position indicia on it . the finger position indicia may be constituted in several different ways , including by depressions sized and arranged to receive the fingers . the arrangement of the indicia shows how to grip the baseball for throwing different pitches .