Specifications Recommended Maximum Weight: 300 pounds Uses: Use for rehabilitation, physical therapy and general workouts to improve balance, strength and stability Dimensions: Diameter: 15.5” Height: 3.25" Thickness of platform: 0.7” Materials: Poplar wood Composite plastic bottom Care instructions: Wipe down with a damp towel; dry immediately Do not submerge in water What’s Included: Wooden wobble board One year guarantee UPC: 818323021363 Product Number: RHB 1036 Shipping Weight: 3.6 pounds