✅【3/8"-16 UNC Thread Leveling Feet】Not compatible with 3/8"-24 metric M10. ⚠️Ensure your existing furniture's threaded hole is 3/8 inches (9.52mm) for a proper fit. Measure the leveler's outer diameter(avoid ruler for accuracy) and thread count: Refer to the second image for detailed specs before ordering. ✅【Non-Slip Cushion Pad & Adjustable Height】 2.2" tall levelers with 3/8-16 x 1.5" thread length and 1.4" base add 3/4" to 1-3/4" height to workbenches, desks, dressers, tables or heavy-duty furniture. Non-slip cushion pads shield floors. Recommended for large or heavy furniture with leg diameter greater than 2". ✅【Rustproof Levelers for Heavy Duty Furniture】Each commercial quality furniture leveler with T-nut and screw-on thread is made of premium steel with a shiny and rust-resistant finish. A set of 4pcs is capable of furniture up to 1320LBs, providing ultra strong support for large and heavy furniture. ✅【Easy to Install or Replace】Replace the original leveling feet by unscrewing them and fastening the new ones. For furniture legs without screw holes, drill a 1/2” hole with a depth greater than 1.5". Then insert the T- nut so you can screw in the leg levelers. For a metal leg, you may weld a 3/8" threaded insert on it and then screw in the leveler. ✅【Widely Used for All Types of Furniture】These adjustable leveling feet are applicable for all types of furniture at home, office, school, restaurant, bar, etc, fixing wobbling legs for tables, chairs, stools, cabinets, bookshelves, plant shelves, garage tables, patio furniture, and more. Leg levelers suitable for tables, desks, sofas, chairs, cabinets, display stands, pedicure chairs, electronic racks, AV racks, medical equipment, display cabinets, shelving units, art easels, plant stands, and ladders. Help you to slide the furniture easily and stably without affecting the appearance of the furniture.