Material: These furniture leveling screws are made of metal and rubber, offering increased toughness, longevity, and corrosion resistance. The deep screw thread provides a secure grip, reducing slippage during adjustment and helping prevent detachment. No more scratches: The product features a round base with a smooth, burr-free surface and fine craftsmanship. The thick base ensures strength and stability, while the round rubber base helps protect floors from damage and scratches. No squealing: These leveling feet help stabilize uneven furniture legs. Install them at the bottom of your furniture to maintain balance. Includes a sound-dampening floor protector mat to allow quiet and smooth movement without squeaking. Height adjustment: Easily adjust the height of tables and stools to suit your needs. The adjustable range is from 8mm to 25mm when installed. Package included: 22-pack adjustable furniture leg leveling feet. Product size: M8 x 23 x 27mm.