This square caster socket cover is not easy to deform, lightweight, not easy to damage, can be used for a long time, easy to use, often used in daily life to support pipe office furniture products or fix caster parts, can well protect the metal rod of the chair caster. Note: Please check the size of the chair leg before use. Specifications: Material: PP Size: Bottom length: 25 mm / 0.98 inch Bottom width: 25 mm / 0.98 inch Height: 38 mm / 1.5 inch Color: Black Packaging List: 4 X Caster Rod Insert Sleeve Notes: 1. Small items may include, please store with care. 2. Manual measurement, please allow slight errors on size. 3. The color may exist slight difference due to different screen displays.