Gvibe Gballs 3 is an advanced and improved personal muscle trainer with smartphone control. Kegel training with Gballs 3 easy, effortless, and playful. You don’t need to spend a lot of time on this, only half an hour a day and in 3-4 weeks you could see real changes. Gballs 3 offers what ordinary vaginal balls do not - feedback, helping you to understand what to do with your kegel muscles and how to do it.