5 PCS Office Chair Caster Wheels,11mm Standard Size Casters

【Material】: The casters are made of high-quality nylon, which load-bearing, sturdy and durable. 【Features】: The office chair casters rotate 360 degrees without obtacles, ensuring free movement in every direction. 【Set】: There are 5 office chair casters in the package, whose diameter is 49mm. 【Quiet】: The office chair caster has a roller design that can rolls smoothly disturbing others. 【Quiet】: The office chair caster has a roller design that can rolls smoothly disturbing others. 【Usage】: This product is suitable for replacement and installation of ordinary office chairs and computer chair casters. It can better protect the floor.