Times be tough for a lot of we these day so I think I would help out by share my thought about the Shake Weight and how you can make you very own . you 'll need a few thing first . gather a old flashlight , one of those hand-held job that take two `` d '' battery . it should not be hard to find . they be in every Household section of every junk Shop in the world . next take out one of the corroded battery and discard it -lrb- appropriately , of course -rrb- . remove the glass lens and anything that could shatter and wrap hell out of the whole mess with duct tape . now ... . shake . yes , that be how it work . you shake it and it jiggle you arm fat until you supposedly become a supermodel . okay , if you do not have access to a old flashlight , I do have a alternative plan thanks to another reviewer . take a can of pea and make yourself a really strong duct tape handle just in case the can should slip out of you palm while you be do all that jiggle . there ya go ! another set you can share with a friend . when I buy this piece of junk at Walgreens the cashier and I look everywhere on the package to see what size battery it take , just in case they be not include . we could not find anything , nor could we find anything say that this work by my simply shake my arm . I own my set for about 20 minute before immediately return they . I do not mind that they do not work the way I think they do , I do mind that by all appearance on the commercial the model be fight back against some sort of mystical force . I see this as clear false advertising . I recommend the can of pea .