what is this exercise equipment seen on tv?

Question by Paige: what is this exercise equipment seen on tv?
I saw it on tv i dont know how long ago all i remember is that during the commercial they asked models how they liked it and they models said it made them toned not bulky if you can tell me what exercise thing they were talking about

Best answer:

Answer by Videogamesareamazing
shake weight XDD

What do you think? Answer below!