The Tantus super soft c-ring is an excellent cock ring that as the name suggests is made of soft and stretchy silicone. This stretchiness allows this ring to be safe, comfortable, and easy to put on while keeping all the hygiene benefits of silicone. The design is simple but effective. The band is thick enough to avoid the rubber band feel many cock rings have and it works well whether placed in front of the balls, behind them, or on them like a stretcher. A superb choice for most all users.