The world’s most discreet kegel/geisha balls – string-less and extremely effective.The Joy Division Secret Single Joyballs feature an attractive design, strengthen vaginal muscles and are very easy to insert. The special feature of this love ball is the retrieval string which is worn inside the body. This makes them easy to remove. You can wear your little secret everywhere: at home, in the gym or even while swimming in the pool. The balls are made from Silikomed® material and are 100% waterproof – thus they can even be cleaned in the dish washer.