Diestco Fabric Oxygen Tank Holders -- A very safe and inexpensive way of carrying your oxygen cylinder on the back of your mobility vehicle. Available for E-tanks, and smaller size tanks. - Water resistant nylon fabric - 2 attachment styles to choose from: 1. Scooter Mount For Seats without Push Handles #B6211: captain-style seats and seats without push handles like scooter and power chair seats. 2. Wheelchair Mount For Seats with Push Handles #B6311: like manual wheelchairs, transport chairs. Customize your mobility equipment with accessories by Diestco Manufacturing. Shop with confidence at Ramp Warehouse - always free shipping, no sales tax and lowest price guaranteed! #B6311 Wheelchair Mount, For Use on Seats with Push Handles #B6211 Scooter Mount, For Use with Captain-Style Seat without Push Handles Free Shipping No Sales Tax Lowest Price Guaranteed