SILICONE ISLAND RINGS-CLEAR Sex Toys, Adult Toys Store - Clear Silicone Island Cock Rings come three different sizes.

Well, I bought this set of cockrings, and while it did work, they sure didn't last very long: the first ring I used broke after two uses, or in the same day. I was more careful with the other 2 but they didn't last 2 weeks, in which I used them for a combined 7-8 times. Perhaps they don't react well to lube, or sweat. All I know was that I was disappointed.

Very tight around the penis. Doesn't stretch enough, even for a smaller cock. Difficult to remove, but it did work.

I could only get the largest of the three on my dick, but the effect was excellent. My rock hard erection had more size and girth and now the girlfriend asks for it everytime. Only problem is it finally snapped after about 50 uses. For the price though, I (we) love it.