Series 140 Truck, Holds 9 1 4 in to 10 1 2 in Cylinders, 10 in Solid Rubber, Ball Bearing Wheels no checkout 060 in thick for an 060 in thick for an extra margin of protection Rubber gasket on the inside of the holder eliminates all concern of friction and noise Holder is hinged and swings back giving you access to the tank much quicker and easier than chains and makeshift methods medium and large cylinders Deluxe Models have refinements and features such as handle bars with hand grips for better control and stability when moving the loaded unit Welded on tool boxes are standard on all three sizes of trucks in this series Hose hooks and welding rod holder tubes provide greater utility Handles small