Improves Seating Posture While Providing Back Support And Comfort * Conforms To Provide Support To The Lumbar Region * Sealed Liner Protects Foam Core From Moisture * The Stabilization Board Secured On Back Of Foam Core Prevents Hammocking In Sling-back Wheelchairs * Has A Non-slip Vinyl Back To Prevent The Cushion From Sliding * Weight Capacity: 300 Lbs * 18 Month Limited Warranty On Cover And Cushion* Hcpcs Suggested Code: E2611 * Notice To California Consumers: Warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm *