This three-piece cock ring set is perfect for the man who knows what he wants. No unnecessary functions or options, just a good cock ring in 3 different sizes. The penis rings are made of odorless silicone that is not porous and lasts a very long time. The silicone penis rings feel wonderfully soft and are stretchable, so you always get the right fit while wearing. The rings are easy to clean with water and toycleaner. Inner diameters: 3.2 cm, 3.8 cm and 4.5 cm