GENERAL PURPOSE FRICTION-RING STEM CASTER, SWIVEL CASTER, 75 LB LOAD RATING, 0 TO 299 LB, 2 IN WHEEL DIA., 3/4 IN WHEEL WIDTH, THERMOPLASTIC RUBBER WHEEL/TREAD MATERIAL, 2 1/2 IN MOUNTING HEIGHT, PLAIN, 7/16 IN X 1-29/32 IN CASTER STEM SIZE, FRICTION RING, STEEL CASTER FRAME MATERIAL, ZINC PLATED FRAME FINISH, YES NON-MARKING, 1 NUMBER OF WHEELS