Specifications: Material: material + adjustable leveling Foot Length: 34.5mm Bottom diameter: 24 mm Packaging includes 12 PCS adjustable upgrade Feet How to use: 1. Determine where you want to position the furniture legs. 2.Use a 5/16 bit to drill a hole equal to the diameter of the threaded portion of the furniture legs. 3.Insert the T-nut and screw cap into place. 4.Turn the screw cap. 5.Install all the legs of the cabinet. feature: Furniture legs are suitable for wooden floors, protect wooden floors and provide a quiet sliding surface. These are all the floor protection furniture needed for a home and this is the best solution to quickly and easily repair different levels of furniture.