Heavy Duty Leveling Feet- These are 4 heavy gauge, plated steel furniture legs that help you adjust and level your table, cabinets, workbench, shelving units, bookcase and more. Versatile Threaded Legs- The leveling feet have heavy 3/8"-16 (10mm) dia shaft that adjusts height from 0" to 2-1/2". Free spinning foot design compensates for uneven/ irregular floors. Polyethylene cap protects floors and block moisture from getting to the foot. L-Shaped Mounting Bracket- Ensures the cabinet load is carried by the leveler, Not the screws. The leg leveler has 7/16 wide ledger,allows the mounting bracelet hooks onto the bottom edge of furniture for better support and stability. 1320LBs Weight Support- Each leveling leg support 330LBs, 4 legs support total 1320LBs. These heavy duty leg levelers hold up almost all heavy furniture you may have,without worrying about its quality. Hex Wrench for Easy Adjustment- 5mm hex wrench is included to allow micro adjustment on each leg until they are perfectly level to your desired height.Package includes 4x leveling feet, 16 Installation screws , 5mm hex wrench.