Wheelchair Back Cushion 20x17 General Use w Lumbar Support Specimen Collection Products Digital Wrist Electronic Blood Pressure Commode Shower Chair Accessori Digital Wrist Electronic Blood Pressure Monitor Machine for Home BP Readings 13 cm * Shipping Weight 114 lbs 52 kg * Adjustable U base Improves seating posture while providing back support and comfort * Durable masonite board sercured on back of foam core prevents hammocking in sling back wheelchairs * Conforms to provide support to the lumbar region * Sealed liner protects foam core from moisture * Has a non slip vinyl back to prevent the cushion from sliding * Weight Capacity: 300 lbs * Limited 18 Month Limited Warranty on cover and cushion * Compare to Jay Basic Back *