Gymnic Stability Wheel Balance Cushion This proprioception balance cushion is an excellent piece of equipment for training and rehabilitation as it allows different kinds of exercises to improve balance, muscle tone and posture. The Stability Wheel can be used in different training programs for all sports but in particular basket, tennis and volleyball where a high core strength is required. It is also suitable for ski gymnastic training and rehabilitation programmes. Inflate the product to the needed stability level. Needle pump required for inflation -to add one to your basket, please click this link. Size: Ø 40 cm x Height 9 cm Recommended weight: max. 120 kg (270 lbs) / Tested load capacity: max. 200 kg (440 lbs).