Series 830 Truck, 10 1 2 in and 12 1 2 in dia Cylinders, 14 in Solid Rubber Wheels no checkout Forged steel head lends force Forged steel head lends force to blows Flame treated handle "Sure Lock®" wedged Specifically designed for strength and comfort in critical environments Significantly reduced particulate and extractable levels 100% powder free with no plasicizers Series 830 is a new design to accommodate a large oxygen cylinder in the back and a large acetylene cylinder in the front This narrow design allows for better maneuverability in narrow aisles where a normal side by side cylinder truck cannot go SO 2 bolt on tool box is available as an option