The EZ-Access Wheelchair Oxygen Carrier is available in single or dual tank capacity, This versatile carrier features an adjustable snap for holding either ""D"" or ""E"" cylinder, Extra long straps adjust to fit any wheelchair and allow the carrier to be positioned off-center avoiding uncomfortable contact with head or back, Single carrier made of durable lightweight nylon, Dual carrier is made of lightweight mesh and features a convenient storage pocket for magazines nasal mask etc, Available in black, SKU: EZAC018