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 Global Custom Medium Back Armless Task Chair, Tomato:
Not so easy to assemble. Still not sure that I did it correctly. The underside of the seat looks shoddy- fabric stapled to cardboard - not a nice finish.