This 100% elastomer masturbation sleeve has delicious nubs on the inside for the ultimate in self-pleasuring. The Sidekick is closed at one end, which creates strong suction. The elastomer material is body-safe and phthalate-free, and it's compatible with both water- and silicone-based lubes. Clean the Sidekick with warm water and soap or a good quality toy cleaner. It just may become your new sidekick!