Change your POWER training forever! Manufactured using the same technological innovations used to develop mediBall Pro, we have thickened the skin and weighted the plastic to produce a high rebound ball and a very dynamic training environment. Conveniently air-filled, you can increase or decrease the 'bounce-factor' by inflating or deflating the ball. Live Medicine Balls in 6 sizes, 1 to 6kg, thus allowing you to vary weights of the balls for optimal sets, reps and recovery. Medicine Ball training can be made even more challenging by adding unstable training tools such as mediBall and or duraDisc. LENGTH: 26 cm. WIDTH: 26 cm. HEIGHT: 26 cm. WEIGHT: 3 kg.