Erection rings made of very stretchy silicone. They fit on every penis. These rings, by pressing the penis effectively extend the duration of intercourse. Thanks to its irregular shapes, it nicely irritates the vagina and clitoris. Each ring in a different size - applied during erection at the base of the penis will ensure maximum erection until the very end! The product is made of soft silicone material that is safe for the skin, hygienic and durable at the same time. This material is super stretch, so it fits on every penis.