Protect your floors and enhance the functionality of your furniture with our chair glides protective covers. These covers are easy to install and fit over the bottom of chair legs, preventing scratches and reducing noise. Ideal for dining rooms, living rooms, and offices, they make sure your furniture glides smoothly across the floor without causing damage. Features -Color:Black -Material:Plastic -Size:3.30X1.50X1.50cm/1.30X0.59X0.59in -Inner diameter: 8mm -Outer diameter: 16mm -Fit for 8*38 rods - construction: the pp plastic material used in these caster sockets is and resistant to wear, ensuring longterm reliability -Easy to replace: the sleeve inserts for castor on furniture are designed for easy replacement, allowing you to quickly upgrade or repair your chair wheels -Enhanced stability: the chair wheel stopper lid provides added stability, preventing unwanted movement and ensuring your chair stays in place -Comprehensive protection: the rolling chair wheel covers offer comprehensive protection for both your chair wheels and your floors, extending their lifespan - solution: these chair caster covers offer a solution for maintaining and upgrading multiple chairs Package list: 20 x Stool Swivel Caster Covers