Description: Adjustable: Self closer has spring loaded adjustable tension. Totally automatic closing, protects your door and lock. Aluminium Alloy: Made of aluminium alloy material, silent, latch engagement subject to conditions. Use this door closer to convert hinged doors to self closing ones. Durable and Sturdy: Exquisite workmanship and high performance for long time use, suitable for right and left opened door, metal door, residential and commercial doors, escape doors, fire doors, home door and so on. Feature: door closer is to reduce the intensity when you close door to protect the doors from damaging and reduce the noise . Easy to Installation: Suitable for door weight for 25-60kg,, door width 500-900mm. With a closer and slide plate being surface mounted, easy to install. Specification: Material: Aluminium Alloy Optional Style A: Suitable for the door and door frame are NOT on the same plane. Style B: Suitable for The door and the door frame should be on the same plane. Size Chart: Undrawn: 40cm /15.75inch Expand: 57.5cm /22.64inch Package Includes: 1 Automatic Door Closer