Includes:Back Shell Back Shell Hardware Back Cane Hardware Cover Foam Pad Air Insert Lateral Air Inserts Foam Insert Dual Wrench Lumbar Support Pad (select models) Repair Kit Hand Pump Product Registration Card Quick Set-Up Guide and Operation Manual * Construction: Back Shell: Aluminum Back Shell Hardware: Zytel� with an aluminum Sliding Height Adjustment Bar Back Cane Hardware: Bracket and pins are aluminum * Pivoting Cane Band and Adjustment Cylinder are steel * Cover: Front side is 100% polyester. Backside is 10 * Warranty: Back Shell & Hardware: 36-Month Limited Warranty * Air Insert: 18-Month Limited Warranty Cover & Foam: 18-Month Limited Warranty