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™ Traditional Queen Ann High-Back Executive Chair:
I bought this chair three years ago - with a five year limited warranty. Now the seat surface started with one small crack and within two weeks had a dozen cracks. The chair has had light useage, no overweights etc. When I contacted Staples they asked for the receipt. I had the Discover card statement which clearly showed when where and how much paid. They refused it, claiming only the actual recepit can get warranty service. Don't know which bothers me more - being sold a poorly made chair or the way I was treated when I had a problem.