referring to the drawings , and first to fig1 - 3 , the exercise device 10 has two adjacent elongated cylindrical rollers 11 , 13 which may be made of rubber , compressible foam material or suitable plastic . the respective circular ends 15 , 17 , 19 , 21 of the rollers are provided with grip handles 23 , 25 , 27 , 29 . each of the grip handles is partially inserted through a central bore ( not shown ) which is drilled partly into each roller , and retained in position by a retainer means such as a nut and bolt combination 31 , 33 , 35 , 37 or by some equivalent retaining means . the adjacent grip handles 23 , 27 are connected together by means of a compressible - expandable spring 39 and the adjacent grip handles 25 , 29 are similarly connected together by means of a compressible expandable spring 41 . the rollers 11 , 13 are rotatable in clockwise and counter - clockwise direction by manipulating the grip handles 23 , 25 and the grip handles 27 , 29 by the exerciser as further explained below . fig2 shows the positions of the rollers and other parts of the exercise device , in phantom positions 11 a , 13 a , 23 a , 25 a , 27 a , 29 a , after expanding the springs 39 , 41 by forcing them in outward direction . fig3 is a view taken along the line 3 - 3 of fig2 showing the rollers 15 and 19 in phantom positions 15 a , 19 a , respectively , when the spring is force outward . fig4 is a view taken along the line 3 - 3 of fig2 and illustrates the body contour of the exerciser . fig5 illustrates the method of using the exercise device by the exerciser 43 . thus while the exerciser 43 lies flat as shown in this figure , he grips the grip handles 23 , 25 and pulls the device toward himself and thus rotates the rollers 11 and 13 toward himself as shown by the phantom positions of rollers 11 a , 13 a and then pushes the grip handles forward to return the rollers to their initial position . repeated pull - and - push of the rollers 11 , 13 results in strengthening the pectoral parts of the exerciser body as well as strengthening the forearm and the biceps . by adjusting the tension in the springs 39 , 41 the forces exerted by the exerciser can be increased or decreased as desired . as it was previously mentioned , the double roller exercise device of this invention can also be used to massage the exerciser &# 39 ; s leg as shown in fig6 . thus , the tension springs 39 , 41 may be first adjusted to define a proper space 43 between the adjacent rollers 11 , 13 . the exerciser then inserts one leg ( thigh ) 45 through the space 43 , such that the back of his knee ( popliteal fossa ) rests on the front roller 13 and the thigh is pressed by the roller 11 against the roller 13 . the exerciser can then grip the grip handle 23 with his left hand and grips the grip handle 27 with his right hand and pushes the rollers 11 , 13 in opposite front and back directions , thus exerting pressure on the thigh and imparts a massage action on his legs . by adjusting the springs attached to the grip handles , the space 43 between the rollers may be adjusted to accommodate the leg between the rollers for effective massage action . the double roller exercise device of this invention may also be used for massaging the back of the exerciser . this would simply require that the exerciser lie flat on his back on the rollers and manipulate the rollers forward and backward with his back for relief .
a double roller exercise device has a pair of elongated spaced - apart rollers with a grip handle secured at the end of each roller . a compressible - expandable spring is connected to the adjacent grip handle and the roller can be pushed or pulled by the exerciser by manipulating the grip handles by the exerciser .