For the very first time, Martin Wheel is offering Universal Fit Wheelbarrow Wheels, available in Flat Free or pneumatic tires. This general purpose pneumatic wheel is used on most 4 cu/ft wheelbarrows. Our lightweight pneumatic rib tire is mounted on a one-piece welded steel wheel with an industrial ball bearing hub. Comes complete with universal hub spacers to fit the most popular lawn carts and wheelbarrows. Non-highway use only. Complete tire and wheel assembly.