Heavy Duty Steel Wheel. Fits Gravely 40" & 50" Cut Midsize Units. Has Zerk Fitting. Painted Gray.Replaces:GRAVELY 11386GRAVELY 011386GRAVELY 07132800Dimensions:SIZE: 6 X 2.00SIZE: 6X2.00BORE: 3/4"HUB: 2-1/2" CENTEREDTREAD: RIBCASE QTY: 400PALLET QTY: 1