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