MXH1138 Features: * Tankfoot tank stabilizer * Fits 20 lbs, 30 lbs, and 40 lbs cylinders * 6 Each per carton * Reduces the risk of tipping cylinder while being transported Dimensions: * Dimensions: 4.75"" H x 15.25"" W x 15.25"" D Warranty: * 1 Year warranty from date of shipment from vendor