[Product Information]

• 16 1/8" diameter with a 22° angle of deflection
• Durable and lightweight， made of black molded plastic with a specially-designed tactile surface on the top and an anti-kid surface on the bottom
• Offers an unstable and sensory-stimulating surface， facilitates rehab， post-rehab conditioning， and fitness applications
• Allows for multiple planes of instability for the most challenging training
• Provides multiple planes of instability for the most challenging training
• Made of black molded plastic with a specially-designed tactile surface on the top
• Durable and lightweight