Gymstick balance trainer pro is an extremely durable bosu ball developed for professionals and active home users. balance trainer pro can be used for training your balance and coordination, as well as to make various exercises to be more challenging. training on top of the ball instead of a flat surface challenges the body more efficiently. the ball is made of long-lasting materials that are suitable even for commercial gyms. massive 300 kg maximum load allows for the ball to be used with extra weight.Specifications: - Weight: 5.2kg- Dimensions: 61,5 x 61,5 x 25- Materials: PVC, PP