Material: These furniture levelers are made of rubber with metal screws, which have good rust resistance and load-bearing capacity, and are not easy to break or wear out after long-term use indoors and outdoors. Furniture and Floor Protection: The adjustable furniture levelers feet offer good anti-slip properties and provide stable support on uneven surfaces, preventing furniture from shaking, protecting floors from scratches and damage, while also absorbing vibrations and reducing noise. Easy to Use: Reverse thread nuts are included in the package. For threaded furniture, simply rotate the threaded portion of the leveling foot to adjust it to the desired height. Otherwise, drill a hole and insert a nut for a secure fit. Wide Application: The adjustable furniture leveling feet are suitable for various floor types such as wooden floors, tiles, carpets, etc. They are widely used in indoor and outdoor tables, chairs, stools, dining tables, cabinets, wardrobes, coffee tables, shoe cabinets, TV cabinets and other furniture.