The silicone caster cups have polishing surface to contact the ground so that the floor will not be scratched or damaged regardless of wooden or tile, and floor holding will be excellent.

Original Convexity Design will help furniture stoppers bear heavier loads and make your furniture in place firmly to protect floor.

Most caster wheels at office and home measure 2 to 3 inches in diameter, however our caster cup would fit 1 Inches to 4 inches in diameter& 2-1/2 inches wide, which you can say all the wheels.