With the ABS Kangaroo Jumper Ball, Junior - 18", Red one can hold onto handles and jump. Improve coordination and train muscles. Good for spine and posture. The ABS (AntiBurst System) provides an added level of puncture-resistant safety. ABS weight limit is substantially less than the ball's weight capacity. The total weight capacity of this item is 330 lbs , while the ABS capacity is 135 lbs.