POLYURETHANE TREAD ON ALUMINUM CORE WHEEL, 1,050 LB LOAD RATING, 1,000 TO 2,999 LB LOAD RATING RANGE, 5 IN WHEEL DIA., 2 IN WHEEL WIDTH, POLYURETHANE WHEEL/TREAD MATERIAL, HARD, 55 SHORE D, ROLLER, STANDARD TREAD SHAPE, 1/2 IN FOR AXLE SIZE, NOT INCLUDED INCLUDES SPANNER BUSHING, ALUMINUM WHEEL CORE MATERIAL, YES NON-MARKING, 2 7/16 IN HUB LENGTH