Specifications Uses: Improving core stability, balance and posture Increasing muscle strength, stability and tone Relieving tension and back pain Promoting focus and concentration Materials: Latex-free composite Dimensions: 12.5” Care Instructions: Wipe down with cool water and a mild soap Air dry What’s Included: Wobble cushion Pump 60 day guarantee UPC: 028841241628 Product Number: RHB1005 Shipping Weight: 2 pounds User Manual:  Inflatable Balance Disc