CLEANROOM PNEUMATIC STOOL, WEIGHT CAPACITY 275 LB, SEAT HEIGHT RANGE 20 1/2 IN TO 26 1/2 IN, SEAT DEPTH 16 IN, SEAT WIDTH 16 IN, COLOR BLACK, MATERIAL VINYL, BASE STEEL, FEATURES WATER RESISTANT, INCLUDES DUAL WHEEL HOODED CASTERS, NO, STANDARDS NOT APPLICABLE