Ensures a safe and smooth glide on a variety of interior surfaces including hardwood, tile, vinyl, marble and carpet, Perfect for ensuring your furniture can be moved easily without damaging your floors. Garage Door Replacement Wheels: These casters are designed for indoor use and are not recommended for use on rough outdoor surfaces. They are best suited for furniture such as cribs, strollers, kitchen cabinets, etc., enhancing mobility while protecting your floors. Garage Door Wheels: Experience quiet and smooth operation with these solidly constructed casters. They minimize noise and distractions, making them ideal for environments where quietness is critical, such as offices and homes. REPLACEMENT & MOBILITY: Ideal for replacing old or wheels on movable furniture, these casters provide a practical mobility solution that extends the life and functionality of your item in a variety of environments. Colour:As Shown Material:Galvanizing Package Contents: 12 * Wooden door droop support wheel Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.