OXYGEN CYLINDER "d" SLEEVE. #474OR #474GR This attaches to the rail of a cot and holds a cylinder. It attaches with a 2" hook and loop that is sewn to 2" webbing. There is a hook and loop tab sewn to the top where you can coil your oxygen tubing and store it when not in use. It is available in orange or green. It weighs 8 oz. and the overall dimensions are 15 1/2”L x 4 1/2” diameter. By R&B Fabrications.