Our caster socket sleeves are essential for maintaining the stability of your furniture. Designed to fit into the legs of chairs and stools, these sleeves provide a secure mounting for stem casters. Whether you're replacing old sockets or installing new ones, these sleeves make sure your furniture remains steady and reliable. suitable for both home and office use. 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 - : the swivel caster sleeves allow for smooth and effortless movement of your office chair, enhancing your overall comfort and productivity -Secure fit: stem sleeves make sure a snug and secure fit, preventing the wheels from coming loose or detaching during use -Noise reduction: the chair wheel stopper protective cover helps to reduce noise when moving your chair, creating a quieter and more peaceful work environment -Versatile use: these chair accessory parts are suitable for a wide range of furniture, including office chairs, stools, and rolling chairs -Protective design: the chair bottom floor protectors are designed to shield your floors from scratches, dents, and other damage caused by chair movement Package list: 20 x Stool Swivel Caster Covers