Convertible Hand Trucks are an ideal multitask mobility solution â€“ use as a Dolly to transport a stack of products, or as a platform truck to transport more or larger items. Colson 2 Series Convertible Hand Truck casters are the ideal solution for the additional casters required for platform truck configuration. A round stem, with cross-drilled mounting hole, helps ensure this caster is compatible with many different, nationally branded convertible hand trucks. Attractive zinc plating adds durability and longevity to each caster. A polyolefin thread guard protects precision ball bearings from debris entanglement. Partner the 2 Series Convertible Hand Truck casters with Performa Hand Truck Wheels for the ultimate mobility solution.