The furniture mover provides leverage to lift your unit to slide the four rollers under each corner, you can now easily roll your unit. Once you're done, use the furniture lifter again for heavy furniture to remove the rollers. This furniture slider for tile floor is fine workmanship and precise size, appliance jack lifting and mobile equipment is compact in size, easy to store, save space, easy to carry tools, work quickly and efficiently with heavy duty furniture sliders. Furniture lifters for heavy furniture are made of metal. Device sliders are strong enough to hold up to 880 lbs risk-free Suitable for any type of floor. Use the wheels for hardwood, tile, concrete, linoleum or other hard surfaces and adapter pad for carpet, rugs or other loose or soft surfaces Colour:Black & White Material:carbon steel Package Contents: 4 * Furniture Mover Sliders 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.