DescriptionThis is anti-slip wheel caster, well made of nice material, durable, wearable and long life. Simple color design, can well match with your office chair. You can install these wheel castersinto your office chair or computer chair, so as to provide you a more comfortable sitting chair. Protects floors and reduces noise.Suitable for tables, chairs, furniture, instruments and more.Features-Color:As Shown -Material:Rubber,metal -Size:2.00X1.60X1.00cm/0.79X0.63X0.39in - Very easy to install, turn over your office chair, pull out the chair wheels, then insert these casters .- You can install these casters to your office chair to reduce the unwanted movement across hard, tile and laminate floors.- Great for office chairs, a great addition set for office, home and many other places.- Cone-shaped heightening and anti-slip design, stable and not easy to slide, protects furniture.- Sufficient quantity for use, convenient to replace. Suitable for various furniture.