2.5" Replacement Office Chair Caster Wheels with Spokes (Set of 5) - Black

2.5" Replacement Office Chair Caster Wheels with Spokes (Set of 5) - Black Preloved These are replacement parts for most standard chair bases. The standard grip ring mounting stem measures 7/16"x7/8" (11mm x 22mm) and fits most chair bases. The 2.5" (65mm) twin hard plastic nylon wheels are perfect for use on carpet and plastic chair mats.