Item Type: Masturbators Material: Medical polymer materials Size:normal color:Blue/Gold Adult utensils material:cyber skin Motion:Piston motion Motion speed:Hight/Low 2 shifts Net weight:500g waterproof:Silicone sleeve waterproof Dimension:241mm x 71mm x 71mm Product features: 1. Automatic piston motion type male masturbator cup 2. Up to 270~330 times piston motion per minute. 3. 2 speed shift can be selected. 4. Adopt medical senior soft silicone gel 5. Total 55 silicone massager hands. 6. Dimention: 71mm*241mm. Color :Blue and Gold(Random delivery) 7. Battery: 4 XAA battery(not include) Do not need hand up and down thrusting , cup automatic help you complete , all you need slowly enjoy , cup particle stimulate , up and down vellicate pleasure of it !