Not worth the money. Theoretically a great idea. Years ago this product was fantastic. It actually slid up and down your cock as you squeezed the bulb and felt too good to be true. But for some reason they went cheap on the sheath material and it just lays there on your cock now, or maybe moves just a little -- not enough to produce any good sensations. I'm going to keep the bulb apparatus and experiment with other sheaths I might find.