Geisha balls² are a new generation of Kegel balls.The new finish velvet touch is soft and safe. The silicone string has a shorter option for a more comfortable use.With Geisha balls², we try to improve the experience of our customers.The usage of Geisha balls² is simple and clear. There are 4 balls in the packaging, every ball having different weight we include one of the lightest and one of the heaviest balls on the market. The idea of training is to start with the lightest balls and then gradually increase the weight. Just as you do it during a workout. Geisha balls² allow you to have 5 stages of training from 50g / 1.8oz to 100g / 3.5oz. After this, experienced users can train with the individual balls without the strap. Thus, when you feel trained enough with one weight you dont have to go to a store and buy other, heavier balls. You will just need to take out heavier balls from Geisha balls² set. Being anatomically shaped, Geisha balls² are also body safe they are made of abs plastic and the strap is made of 100% soft medical silicone. You can enjoy 1 year warranty for the balls