Description: This item slowly pulls the table surface and closes for a smooth and quiet motion. It is designed for sewing machines, folding tables and other furniture. No need to open holes, easy installation and long service life over 50,000 times. You can rest assured to buy it because it is made of high hardness zinc alloy, durable to use. Features: Uses high quality zinc alloy, surface smooth, abrasion resistant, high hardness. No need to open holes, easy installation and long service life over 50,000 times. Round edge, fits perfectly in your folding table and the holes are lined up. Very high quality mechanism that slowly pulls the table surface and closes for a smooth and quiet motion. Suitable for many surfaces such as computer desks, sewing machines, windows, doors and folding tables etc. Specification: Condition: 100% Brand New Material: Zinc Alloy Color: Gold, Silver (Optional) Service life: >50,000 times Product Size: Approx. 8 * 3cm / 3.1 * 1.2inch Package Weight: Approx. 36g~38g Package Content: 1 * Flap Hinge