DescriptionShips with 5pcs office chair fixed casters, great for converting rolling office task chairs & drafting or stools with casters into a more stable stationary style, or replacing your old, worn glides. These casters make your office chair work well on carpet for easily or drastically sliding.Feature- Brand: STOBOK. - Color: Black. - Material: PU. - Size: 5.00X5.00X3.40cm/1.97X1.97X1.34in. - Contemporary design, strength and performance make these replacement casters an excellent choice for office and home furnishings. - The bottom is made of PU material, causes to the floor and no noise so as to keep quiet atmosphere. - Used to convert swivel home and office chairs with casters into fixed casters. - These glides remain stable across smooth floor surfaces such as wood, tile, and laminate. - With appropriate stems and fasteners, each caster can be used on wood, metal and tubular metal chairs, furniture and other equipments.