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Universally fit all office chair bases with mounting holes Stem diameter: 7/16"(11mm), stem length: 7/8"(22mm)
Specially designed to help protect Hardwood, Laminate, Tile, Slate, and all other Hard Floors
Works perfectly on carpets and any hard floors.
Twin wheel design enhances weight distribution and smooth operation
Swivels and rolls freely and more quietly in every direction with no need for maintenance
These are the perfect replacement for damaged casters on office & home chairs
5X Chair Caster Wheel