Good Material: Our Adjustable Furniture Leveling Feet is crafted with a blend of iron and plastic, combining the strength of metal with the versatility of plastic. Easy to Install: Installing our Adjustable Furniture Leveling Feet is a breeze. First, you need to pre-drill three screw holes on the furniture legs according to the three-hole nuts and screw in the screws, then screw in the leveler and adjust it to the required height. The screw-in design allows for simple attachment to the furniture legs, providing stability and adjustability without the requirement of making permanent alterations.Drill-Free Installation: Of course, if you don't want to drill holes in the furniture legs, just apply the included self-adhesive sticker to the nuts, press firmly to make them stick when installing, and then screw in the level. Tip: Hole-free installation is not suitable for frequent dragging.Scope of Application: Our Adjustable Furniture Leveling Feet has a wide range of applications. They can be used on tables, chairs, cabinets, and other furniture pieces that require stability and balance. These levelers are suitable for both home and commercial use, providing a practical solution to level uneven surfaces and prevent wobble or rock.Specification: Bottom Dimensions: 40 x 15 mm/ 1.57'' x 0.59'' Thread Specification: M8x1.25x19 mm Top Diameter: 36mm/ 1.42'' Installation Hole Diameter: 5.6mm/ 0.22'' Height: Adjustable 34-40mm/ 1.34''-1.57'' Material: Iron+Plastic Package Content: 4pcs x Furniture Feet Levelers with 12Pcs x Screw & 4Pcs x Self-adhesive Sticker