The Bcharmed Basic Wave is a best friend in the bedroom. Its soft. flexible ring was designed to fit men perfectly while body-safe silicone slides seductively against your most sensitive area. This waterproof pleasure house has stimulating ridges to tickle your sweet spot while the 5-function motor masters your massage. Soap and water is all that's required so you can quickly be ready for round two. The Bcharmed Basic Wave is a versatile accessory—it can be paired with traditional massagers like the Bdesired Deluxe for extra fun during solo play. Materials: Silicone. ABS Plastic Bullet requires 1- LR44 battery. included. Waterproof Water-based Lube only Dimensions: Diameter 1.27'' (3.25cm) Total Length 3'' (7.4 cm)