APPLY TO - Our spring-loaded hinge adopts an auto-closing design, which is easier and faster to install. It is very suitable for shed window, shed hardware, shutters, vents, flower boxes, closet doors, locker doors, bookcases, gift boxes, instrument boxes, cosmetics boxes, etc.SPECIFICATION：Screw Hole Diameter: 3mm / 0.118inchClosed Dimension: 25 x 17mm / 0.98 x 0.67 inch (L*W)Open Dimension: 25 x 32mm / 0.98 x 1.26 inch (L*W)QUANTITY INCLUDED -5pcs x Spring Loaded Hinges ADVANTAGE - Made of 304 stainless steel, all have high hardness, it is corrosion resistant, rust resistant, wear-resistant, and has a long service life.