Never compromise safety when it comes to handling heavy compressed gas cylinders. Constructed of 1 in and 1-1/4 in Dia round steel tube with continuous welding, these durable, double-cylinder trucks provide optimum safety, strength and longevity. Floor plate made of thick 11 ga steel with safety fins prevents warping or breaking. The unique zero-lift height loading floor plate lays flat, thereby eliminating the need to lift cylinder during loading and unloading. Caster carriage features heavy steel bars and nylon washers for smooth folding action and easy storage in tight spaces. Corrosion-resistant powder coat finish throughout for long life and smooth handling. Hold gas cylinders in place independently for improved safety. Heavy duty 1-1/2 x 54 in polypropylene support straps, lab tested to 1138 lb, feature steel cinch buckles for secure attachment of cylinder-eliminate any cylinder rolling potential seen in chain-secured units. Exclusive bumper guard edging grips cylinder and minimizes damage to cylinder and hand truck. Optional locking posts and collar plate system model 35084 ensures total cylinder immobilization or accessorize hand trucks with a tool tray or lockable tool box for securing torches and other equipment-models 35388 and 35386 respectively.