Premium silicone, for all the right reasons. It's hypo-allergenic, easy to clean (dishwasher safe), and 100% Phthalate Free! It warms quickly to body temperature and retains heat. It is firm, yet flexible, durable, odor-free and has an amazingly life-like feel and look with a textured shaft and a wide testicle-shaped flat base. O-Ring Harness compatible. What could be better than this Silicone Dildo?