Its characteristic shape and its progressive balls make it more than suitable for a progressive and painless dilation of the anus or vagina its high level of quality in the material is a great feeling when you feel the silicone first hand. its built-in button on the device makes it very manageable and easily adjustable to your needs. Lance is waterproof, so what are you waiting for to enjoy an exciting shower more than ever? We recommend the use of a water-based lubricant to help make penetration and removal painless. features: 10 Vibration function. 3 x LR44 batteries included. 100% Silicone. Measurements: 14cm x 3.6cm.