Product Dimensions: Base diameter 22mm, thickness 6mm, square nut height 10mm, width 18mm, please check the size before purchasing the furniture legs. Keep Balance: If the ground is uneven or the product feet are not good, you can install it at the bottom of the product to maintain balance, the maximum adjustment height is 20mm. High-Quality Materials: Adjustable furniture feet are made of metal and plastic, and the base uses non-slip technology, which is resistant to wear-resistant, sturdy and durable to prevent scratches on the floor. Installation Method: Use an electric drill to drill a hole with a diameter of 8.5mm and a depth of 20mm on the furniture leg, then insert the square nut (tighten with a hammer) and screw in the leveling feet. Application: These adjustable furniture feet are suitable for sideboards, TV tables, dressing tables, cabinets, bedside tables, shelves or office furniture and protect floors.