Train your pleasure with customizable workouts. The 28g Bfit Classic Flex balls, complete with two floating weights, provide deeply arousing sensations while you train your pelvic floor. Start with the single 28g weight and work your way up to the double weights totaling 56g. Includes two silicone straps designed for maximum comfort and adjustability. Materials: Silicone, ABS plastic, TPE Body-safe: Yes Waterproof: Yes Soap and water care Combination of water-based lubricants Diameter: 2.9 cm Total length: 7.8 cm What's in the box: 2 silicone harnesses, 2 ABS bowling balls