Package includes: 4 x hinges. Size: 7.9 cm x 2.9 cm. Thickness: 2 mm. High Quality: The table hinge uses a manufactured high quality zinc alloy, which is smooth and abrasion resistant and has a high hardness. Round edge Fits perfectly in your folding table and the holes are lined up. Great helper Very high quality mechanism that slowly pulls the table surface and closes for a quiet, quiet movement. Wide Applications Suitable for many surfaces such as computer tables, sewing machines, windows, doors and folding tables etc. High quality zinc alloy, smooth surface, abrasion resistant, high hardness. No opening of the hole, easy installation and long service life over 50000 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 gentle and quiet movement. Suitable for many surfaces such as computer desks, sewing machines, windows, doors and folding tables etc.