Rollerblade Style Office Chair Casters for Hard Floors, SET OF 5 Rollerblade Style Soft Wheel Office Chair Casters for Hard Floors (Package of 5) *FREE SHIPPING!* Each wheel is rated for 130 pounds of load capacity. 2.5" diameter Will work on virtually any office chair with a metal stem on the caster of 7/16" wide x 7/8" long. Our rollerblade casters will work on the following office chair brands: Global, Lane, Serta, Humanscale, Novimex, Realspace, Broyhill, Lazyboy La-Z-Boy, Sealy, Globe, SC Turnstone, Vogel Peterson, Office Star chair and Suspa. Will fit almost all office chairs, especially those purchased from office super-stores like Staples, WalMart, Office Depot, Sam's Club and Costco. The larger diameter wheels allow these office chair casters to carry more weight. They roll smoother and will last longer.