Material: The furniture leveling feet is made of plastic and stainless steel, not easy to deform, rust and corrosion resistant. Product Size: Total height: 54mm/2.1"; Screw length: 38mm/1.5"; Thread size: M10; Base diameter: 42mm/1.7". Easy Installation: What you need to do is drill a hole with a diameter of M6 (5.62mm) on the furniture leg with an electric drill, then insert M6 T-nuts (not included) with a hammer and screw in the leg leveler. Wide Application: The adjustable furniture levelers are ideal for tables, chairs, office desks, bar stools, bookshelf to adjust the height and reduce noise. Service Guarantee: LDEXIN guarantees high quality and good service. If you are not satisfied, we will offer 30-days return service. No questions asked. Because we want you to be happy! LDEXIN 20Pcs M10 Thread Furniture Levelers M10 Table Leveling Feet Adjustable Leveler Feet Screw On Furniture Glide Leveling for Chairs, Table, Cabinets, M10 x 38mm Thread Rod Specification: Product Name: Adjustable Furniture Leveling Feet Material: Plastic, metal Total Height: 54mm/2.1" Screw Length: 38mm/1.5" Thread Size: M10 Base Diameter: 42mm/1.7" Package Including: 4Pcs x M10 Furniture Levelers Warm Tips: 1. Due to manual measurement, please allow 1-2mm difference, thanks! 2. Our digital images are as accurate as possible. Because of the difference between the display and the light, the color is slightly different.