【Heavy Duty】 Leveling feet are made of good quality carbon steel and rubber with anti-corrosion and anti-scratch coating. The orange rubber round non-slip base on the bottom reduces friction and scratches on the floor and stops wobbling and vibration on uneven floors. 【Product Size and Packaging】Heavy duty leveling feet Total size 50mmx50mmx100mm (1.9 "x1.9 "x4") Thread size: M8x60mm (2.3 inches) 【Multi-functional】Sliding straighteners are usually used in heavy duty situations such as workbenches, machines, cabinets and large furniture combination cabinets. These leveling feet can adjust the height of furniture legs, level uneven furniture legs, or level industrial equipment or furniture on uneven floors when the floor is uneven or sloping 【EASY TO INSTALL】Adjust the height as needed. Leg extenders are made of carbon steel with anti-corrosion and anti-scratch coating. The height can be adjusted between 1.3" -3.7" as needed. 【OUR SERVICE】If you have any questions about our products, please leave a message to contact us, we are happy to solve your problems. 4Pcs Heavy Duty Leveling Screw Leg, Leveling Screw Leg-M8 Thread Adjustable Leveling Feet Carbon Steel for Furniture,Machine,Mechanical Equipment Leg Leveler