Universal fit air filled hand truck tire, designed to fit the majority of hand trucks, generators, pressure washers, garden carts, and other small equipment. Tire comes mounted on a steel rim with 2.25" offset hub and 5/8" ball bearings. The included parts kit contains a variety of spacers and 3/4" bushings, to meet various hub and axle configurations to help adapt it to the equipment. Max inflation at 30 psi (pounds per square inch). Inflate with manual pump only. Tire size is 4.10/3.50 to 4". Tire Dia is 10.5". Tire width is 3.3". Tire load capacity max is 300 lb (pound).