Maternity Support Large Size 15 18 Oxygen Masks 5 inches * Height from MSHQ 1594XL 5 inches * Height from seat to top of back: 32 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 Size based on pre pregnancy dress size * Bell Horn's Maternity Support lifts and supports your abdomen and transfers the weight evenly and comfortably to your spine * It adds to your natural support reducing the strain on your tissues and providing immediate relief * Support based on a design used by doctors and therapists for years * Relieves pain in the back legs and abdomen * Provides gentle support * Suggested HCPCS Code: N A