The bottom of the adjuster foot is made of nylon material, very quiet when rubbing against the floor, your furniture will no longer squeak or scratch the floorEasy to install, the screws have deep threads, easy to fix, not easy to fall off after fixing, and the height can be adjusted as needed The galvanized screws are strong and durable, and the plastic bottom can effectively prevent the wooden table legs and chair legs from being corroded by moisture Adjust the legs legs of the stool in a consistent horizontal line to maintain balance. A good helper for furniture DIY and repair, suitable for furniture, bookshelves, wooden workbenches, desks and office chairs, etc.Size: 8 adjustment feet, screw size is M10 x 50mm, base diameter: 40mm Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.