This sleek and modern stroker offers suction control with an air release valve incorporated into the lid, turning natural pressure into intense pleasure! Arcwave Pow is made from premium "CleanTech" silicone with a textured sleeve, and dual entry options. We love how unassuming and discreet this stroker is - it looks very much like a Bluetooth speaker, or a fancy travel mug - without compromising on pleasure. With two entry options, one wider and one tighter, the flexible, body-safe silicone sleeve will fit just the way you want. Feel pleasurable suction with every stroke as the interior helix pattern massages and rubs you to climax. [[[How It Works]]] Apply plenty of water-based lube to your penis and Pow's inner sleeve and slide the toy onto your penis. The air pressure release valve tightens the silicone sleeve, creating a controllable, natural suction sensation without batteries. By placing a finger over the air pressure release valve during use, you can control the suction intensity exactly to your liking for a customizable, totally natural feeling. [[[Specifications]]] Material Medical-grade silicone and ABS plastic Length 7.25" overall, 6.7" insertable Opening Wide end 1.5" / narrow end 1.2" - stretches to 1.8" [[[Care Instructions]]] The interior of the removable sleeve uses a “quick-clean” helix design that optimizes the cleaning and drying speed without reducing the amazing sensations you feel. Always use a water-based lubricant with the Pow and be sure to clean it with soap and water, or a toy cleaner, after every use. To clean, remove both lids and run hot water and soap through the inner sleeve. The bottom lid has ventilation holes to allow for air-flow, but we recommend allowing the Pow to fully dry before storing with the lids on. For more thorough cleaning the inner sleeve can be removed, full instruction here.