FURNITURE LEVELERS: This set includes 12 M8 x 30mm furniture legs. Each adjustable screw is made of quality iron and the base is coated with protective plastic. The kit also includes 12 iron T-nuts. The base diameter is 3cm and each leg is 1.3cm high. These legs have a shiny silver metal surface with a black polypropylene base. Our regular duty legs are capable of supporting approximately 10kg per leg. The screws are 8mm wide. ADJUSTABLE HEIGHT: Stabilise and prevent furniture from moving with this sturdy, adjustable screw-in leg. These legs allow you to adjust the height of furniture or level it on uneven floors. You can adjust the height of the screw-in legs between 1.3cm and 3.3cm from the floor. At the base of each leg there is a very dense felt pad that prevents scratches on the floor, reduces friction and prevents noise when sliding/moving furniture. EASY INSTALLATION: Our adjustable feet are quick and easy to install. Drill a deep hole in the wooden furniture leg with a drill.