90 Degree Positioning and Automatic Closing: When the door opening angle is less than 90 degrees, hinge can automatically close. When the door opening angle is greater than 90 degrees, hinge can be positioned. Installation and Use: The spring hinge home frame should be parallel to leave 4 cm space, which can be installed on the basis of the original convenience, without removing the original hinge. Quick Installation Hinge: The self closing door spring hinge is very convenient to install. You only need a door and a set of tools! Applicable Scenarios: Self closing spring hinge is suitable for cabinet doors, wooden doors, furniture, etc. Providing great using experience. Easy to Use: Convenient for children and pets to enter and exit freely. Automatic buffering, do not close the door, gently close the door. Item Type: Self Closing Spring Hinge Product Material: Iron Weight: Approx. 200g / 7.1oz 1 x Hinge 8 x Screw