Solid Tire Assembly / Walker 5715-4Pack Size:1Carlisle 341361, Swisher 4218, Walker 5715-4J. Thomas TD-450, Mow More 8304DB-U-WM, NHC 224-5834, Oregon 70-709, Oregon 72-749, Oregon 72-756, Prime Line 7-04872, Rotary 7982, Sunbelt B1CO7982Walker All units Commercial durability and capacity, Cushioned ride, Specially formulated compound, Backed by solid warranty, Bearing installed in hub, Bore: 5/8 ", Reliance tire, Flat-proof design eliminates costly down time, Hub: 3 1/2 ", Tread: Smooth, Wheel Size: 8x3.00-4