Designed to integrate balance and flexibility into every aspect of fitness, sport performance and rehabilitation. This dynamic training device adds versatility and challenge including cardio, strength training, athletic and sports conditioning, and core training. The ball can be flipped over during workouts to use either the flat or inflated side. Includes detachable resistance cords. Recommended for use only on flat surface, supports up to 120kg. Includes pump. Diameter: 55cm Height: Approximately 25cm when inflated Not recommended for commercial use.