Arcwave POW is a premium manual stroker with suction control, textured CleanTech silicone sleeve and dual entry. Featuring an air pressure release valve that tightens the silicone sleeve, creating a controllable, natural suction sensation without batteries. By placing a finger over the air pressure release valve during use, the suction intensity can be controlled for a customizable, totally natural feeling. Arcwave’s cutting-edge CleanTech silicone is ultra-hygienic and durable, and smart structure within POW’s inner sleeve optimizes cleaning and drying speed. POW has specially shaped lids designed to protect the toy when not in use as well as enable better ventilation for fast and hygienic drying. We recommend using a water-based lubricant with this silicone toy.