With these unique love balls, you won't just train your pelvic floor muscles, but you will also experience a great stimulation with every movement. The balls have counterweights on the inside that move around everytime you make a move. Wear the love balls when you're walking, at work, or while you are shopping for groceries, and you will feel the movement of the weights with every step. Use the cord and pull ring to remove the balls after use. Clean them using a toy cleaner or some water and a mild soap.