1. The first thing you need to understand is this: Made of high-quality zinc alloy, it has good wear resistance, long service life, high hardness, wear resistance, and corrosion resistance. 2. The surface is smooth and comfortable to the touch. With rounded edges, it fits perfectly with the folding table, and the holes are aligned. 3. It solves the frictional resistance of the door lock to achieve a quieter, stronger, and more lasting effect. 4. It is sturdy, smooth, simple, and durable; no drilling is required and it is easy to install. It is a good helper in life and work. 5. Suitable for computer desks, sewing machines, doors and windows, folding tables, and other surfaces. Product Description Image: High-quality zinc alloy, anti-corrosion coating, stable and durable. It does not deform, is non-toxic, tasteless, does not rust easily, and does not harm the human body. Its exquisite appearance highlights its beauty. Feature: Silver Size: 29×78 mm Material: Zinc alloy Package