The Shepherd Hardware 2-1/4-inch Slider-N-Gripper large wood effect non-slip furniture cups (4-Pack) feature a C-ring to help prevent furniture from sliding out of place. The cup cavity is designed to cradle bed rollers.

Anti-skid products protect hard surface floors while holding furniture in place for sound and vibration-dampening benefits
Woodgrain plastic bases with non-skid rubber underside rings to minimize furniture motion on hard surface floors
Easy to install and use - Furniture legs or casters sit directly on cups for temporary or longterm use
Cups offer a concave nest that cradles bed frames, casters, or furniture feet
2-1/4 inch inside diameter round woodgrain plastic cups - 4 Pack