Mini Tank Holders provide a safe, convenient and economical way to carry M6 oxygen cylinders. The holders attach to the handles and frame of a wheelchair and automatically position the tank so as to not interfere with the user’s head or back. Each holder has two pockets and can be used for carrying two M6 cylinders or one cylinder and miscellaneous oxygen supplies such as tubing. Each pocket measures 6 ¼ inches wide by 11 ½ inches high. The holders are made of heavy duty, waterproof black nylon.