PVC coated, heavy duty nylon is strong, waterproof and lightweight. Top and bottom straps are equipped with quick-release buckles and are fully adjustable to accommodate most wheelchairs. Top straps can be attached to the Push-handles or uprights while the bottom straps attach to the tipping levers. Extra long straps allow the holder to be positioned off-center to avoid contact with the patient’s head or back. Holds “D & E” or other 4” diameter tanks. Navy Blue.