you get what you put into this . people say that it do nothing be either a -rrb- do it wrong or b -rrb- need the bigger weight . this be 2.5 lb . however , for the work out you do with it , that be quite sufficient . I have be do this not too long , use the 6 minute work out , and you have to work ! this be not a magic device that will do it for you . you have to push and clench you muscle and go as hard and as fast as you can . -lrb- I know I be get to how wrong it look too just ignore the unintentional inuendo lol -rrb- you push yourself until you want to die , basically , that be the best way to do it I have notice lol . if you be not feel pretty terrible b the end of it you have not do something right . when I do the shake weight I have to put a lot of effort into it . it be not like `` oh this machine be help I excercise '' its more like `` I be help the machine exercise which there for make I stronger '' -lrb- some how , its a loose comparison -rrb- I love the quick work out , this and  Perfect Pushup - original  but these cheap at home item you have to be dedicate to and you have to work they , they be not expensive enough to work you lol xd so work it or do not complain ! lol xd then again my arm be very weak now , so it be very hard for I . but that be also nice aobut it , you can tailor you work out to as intense as you can go , so you can trim it back if you be not able to handle it . there be lot of information and a dvd with the 6 minute work out -lrb- at least there be with mine i buy it from another store though not here -rrb- and its pretty good . for the price who can complain ? it be a great item I have no remorse and I use it every night . it be great . however ... yes you look like you be do horribly filthy thing when you do it . yes it do look wrong . get over it and do it in private if it bother you . lol xd