HemingWeigh Inflated Stability Wobble Cushion | Exercise Fitness Core Balance Disc | Including Free Pump &#9989; Helps Shape and tone your lower body. Balance disc promotes core stability, strengthens muscle tone, improves balance and body posture. &#9989;Can be used as a wiggle seat to help calm children that have a hard time sitting still, and helps provide sensory input &#9989; Improves Posture, and helps with Core and Ab Strengthening. Ergonomic seating, relieves back pain and shoulder aches &#9989; Dual-texture, slip-resistant surface provides grip and massaging comfort &#9989;&#9989; SATISFACTION GUARANTEED: Lifetime Warranty, You are covered by HemingWeigh's lifetime no-hassle replacement policy, If you have any issues, simply contact us directly, and we will replace it for you!&#9989;&#9989;