The Reebok RSB-10017 gymnastic ball is made of high-quality rubber and has a compacted base that prevents the ball from moving on its own during training. The fitball has Anti-Burst technology, which guarantees protection against sudden rupture of the ball in case of an accidental cut or puncture: a damaged ball slowly deflates, rather than deafeningly exploding. The fitball can be used as a bench - exercises on an unstable surface will add elements of balance training to the workout
