Customize your kegel exercise with this versatile ben-wa ball set from the Fifty Shades of Grey collection. The set contains four weighted balls, ranging from 15g to 50g. Use a single ball at a time in the silicone cradle, or combine two balls to up your pelvic weight training. The silicone cradle is body safe, with a tough and flexible string that sits discreetly against the body while in use and aids easy retrieval. The balls are also made of bodysafe silicone, so the entire kit is easily cleaned using warm water and a mild soap. You can use a water-based lubricant to make inserting the balls a little easier. This set is an investment in long-term pelvic floor health, keeping your kegel muscles toned and your orgasms amazing.