describe: Sturdy and Durable MaterialThe furniture straightener is made of carbon steel with matte black design, which has excellent durability and sturdiness, wear resistance and corrosion resistance. Adjustable Leveling FeetFurniture leveling feet with T-nuts and threaded inserts can help adjust the height of furniture, providing strong support and easy operation for the furniture. Widely UsedThese adjustable leg straighteners can be widely used on desks, desks, chairs, sofas, beds, cabinets, bookshelves and other wooden furniture. Practical Home HardwareThe adjustable furniture level comes with high-density felt pads to protect the floor from scratches or avoid harsh noises when moving furniture. Adjustable legs are a quick and practical piece of repair hardware that not only adjusts the height of your furniture, but also makes it easy to straighten wobbly furniture. Easy to InstallDrill a hole in the center of the table leg, about 1/2 wide and 1.5 deep. Place the T-nut into the hole and tap it into the table leg with a hammer. Insert the lever into the nut and adjust to desired height. Specification: Material: carbon steel and plastic Colour: Black Base diameter: 35mm/1.4" Base height: 12mm/0.5" Screw length: 38mm/1.5" T-nut diameter: 24mm/0.9" T-nut height: 10mm/0.4" Felt thickness: 3.4mm/0.1" 4PCS packaging weight: 210g OPP bag packaging size 15*10*7CM