[Strong and Durable Material] The furniture straightener is made of carbon steel with matte black design for exceptional durability and sturdiness, wear resistance and corrosion resistance. [Adjustable Leveling Feet] Furniture Leveling Feet with T-Nuts and Threaded Inserts can help adjust the height of furniture, providing powerful support and easy furniture handling. [Widely Used] these adjustable leg straighteners can be widely used for tables, tables, chairs, sofas, beds, cabinets, shelves and other wooden furniture. [Utility Home Hardware] the adjustable furniture level is equipped with a high-density felt mat that protects the floor from scratches or avoids shrill noises when moving furniture. Adjustable legs are a quick and convenient repair hardware that not only adjusts the height of furniture, but also makes it easy to level. [Easy Installation] Drill a hole in the center of the table leg , the hole is approximately 1/2" wide and 1.5" deep. Place the t-nut inside the hole and knock it into the table legs with a hammer. Insert the lever into the nut and Adjust it to the desired height.