The product was delivered super fast. I ordered this special gyro since I exactly this even with my physical therapist (who has paid a lot more for their gyro) has long been used. My 73 kg for a long time wearing the device there without complaining ?? In my view, the true value for money optimally here. Ideal for stretching and balance exercises. Barefoot or with sports shoes slip not. I always use the gyro still eg in a door frame, so that I can hold at any time. Therefore 5 stars.