Designed to be compact, with non-slip grip texture on the outside for easier manipulation during play. The open ended design allows you to clean easily by running warm water and anti bacterial soap or toy cleaner from one end and out the other!The super supple TPE material is compatible with water based and silicone based lubricants only.3 LR44 batteries are included with the bullet.Curve Toys is known for their ultra-realistic bio-skin formula used to create the best dildos and adult toys in the world.