Kunhua 16-AF-B-FK-20 4.80/4.00-8" Pneumatic (Air-Filled) Tire with Ag Tread, 6" Centered Hub(Two Sides Symmetrical), 3/4" Ball Bearings,15.5" Tire Diameter 4.80/4.00-8" tire. 15.5" tire diameter. 6" centered hub(two sides symmetrical). 3/4" ball bearings. Pneumatic (air-filled) tire. Ag tread. Not for highway use.