Listing is for one (1) Service Caster Air Filled Pneumatic Hand Truck Dolly Wheel with a 8" diameter, 2.5” tread width and a 3-3/16" centered hub. Included are ball bearings to fit 1/2", 5/8”, or 3/4" axles, eliminating the need to guess correct size. Supports 300 pounds (lbs) per wheel.
eBay