The perfect way to move 600 lbs., either vertically or horizontally. This convertible trolley, with 8" puncture proof tires and a flow back handle for one-handed or two- handed operation, easily converts from the 2-wheel vertical position to the 4-wheel horizontal trolley position. Now that's versatility. Powder-coated for long-lasting great looks, it also has wheel guards to protect the load from the tires. What are you waiting for? Get moving.