The PDX ELITE Hydrobator is made for incredible aquatic stimulation with its innovative double-open-ended design, allowing water to flow through the tunnel while simultaneous automated stroking technology gives you a fully-encompassing stroking experience. Created with a hollow tunnel to fit any length shaft, the Hydrobator''s accessible shape allows for wet or dry automated stroking and vibration making it perfect for shower masturbation sessions! The internal tunnel is lined with supple Elite Silicone and is ribbed and textured for extra stimulation.Enjoy 3 stroking speeds and 7 powerful vibration modes that tease the entire length of your penis. Stroking and vibration features can be enjoyed simultaneously or separately, with water or without, for personal sensation customization. The open-ended design allows water to flow through it creating an incredible aquatic stroking sensation. Progressive IST Technology Transparent suction tube Removable Soft Pleasure Topper Erectile Dysfunction Aid Rechargeable Warranty Period: 1-Year Limited Warranty