SOLID RUBBER WHEEL, 300 LB LOAD RATING, 300 TO 999 LB LOAD RATING RANGE, 6 IN WHEEL DIA., 1 1/4 IN WHEEL WIDTH, RUBBER WHEEL/TREAD MATERIAL, HARD, 70 SHORE D, PLAIN, STANDARD TREAD SHAPE, 3/8 IN FOR AXLE SIZE, NOT INCLUDED INCLUDES SPANNER BUSHING, RUBBER WHEEL CORE MATERIAL, NO NON-MARKING, 1 1/2 IN HUB LENGTH