The Leten 3 Piece Set Pelvic Exercise Balls are the perfect set to really exercise those pelvic muscles! The set includes three silicone coated, weighted balls that provide deep arousal and very effective pelvic toning! To tone up your pelvic floor, simply insert the first stage and you will feel your internal muscles naturally clench around it to hold it in place. When you feel like you have toned up your pelvic floor, switch to the next stages for even more toning! The first stage has a girth of 4 inches with a weight of 30g, the second stage has a girth of 3.75 inches with a weight of 40g and the final stage has a girth of 3.25 inches with a weight of 50g. With varying shade of pink, these exercise balls are perfect to tone up and experience great pleasure at the same time!