Hub: 4" AND 4 1/2" Bore: 3/4" Tread: Smooth Wheel Size: 9 X 350-4 Solid, Flat-free Tire Lasts Up To 400% Longer Eliminates Flats With Tough Polyurethane Material Provides Soft Air-cushioned Mowing Requires Up To 40% Less Effort In Mowing Than Conventional hard rubber tires
