This Dumb Bell Exerciser is a Gym for your Johnson. This set of mini novelty dumbbells fits smartly onto a regular-sized dong, and the theory is that you build up strength with every lift!You'll never look at a dumbbell in the same way again! Lightweight and a convenient size for pockets and desk drawers! Willy exercises shouldn't really be done at your desk, it's a sure fire way of giving Angela from Accounting a heart attack!