For Craftsman, Husqvarna, Poulan, Poulan Pro, Yard Machines, Yard-Man and others with 12 in rear wheels. 12 in x 1-3/4 in plastic wheel. 1/2 in Dia nylon hub, offset adapters included. 50 lb. load rating per wheel. Bar tread pattern. The outer hub width is 0.78 in. The length of the hub from the side of the wheel to the edge is 0.37 in.