Mistakeproof stem selection - includes 5 wheels and 10 stem fasteners (5 each 3/8"D x 1"L) (5 each 7/16"D x 7/8"L) for all metal-base chairs
Full hood design - 2"D oversized neck, weight rated 100lb. per wheel
Determine correct stem diameter by removing a caster from the leg of your chair base. Match diameter of existing stem and insert into caster body- Discard the other five fasteners
Comments about Office Star SPACE® Deluxe Air Grid Manager's Chair, Grey Seat:
My family loves this chair. We use it at our computer desk. The seat cushion is firm and comfortable. The backrest is comfortable and breathable. The rollers make mobility in the chair easy while maintaining stability. The armrests are padded, adjustable in height and far enough back so they do not get caught on the desk. This is a great chair with nothing negative to report.