Description: 【Silent Closing】: This Door Closer is equipped with a built in damping system that automatically when closing the door, eliminating noise and creating a quiet and comfortable home environment. No need to forcefully close the door, a gentle push is enough, avoiding the noise caused by the doorknob hitting the wall. 【Protects Door Locks】: The damper the closing action of the door, reducing impact on locks and extending their lifespan. It prevents doorknobs from falling off or getting damaged due to forceful impacts. 【Prevents Hand Pinching】: The damper controls the bound of doorknobs preventing sudden bound that could pinch hands. It's especially suitable for families with children ensuring their safe. 【Material】: This Door Closer is made of Zinc Alloy and PP Material, which is study and can be used for a longt ime. 【Application】: The Door Damper is suitable for Home, Residential, Garage and Commercial Door Use. Specification: Product Size: 20.5cmx3.8cmx2.5cm/8.07inchx1.50inchx0.98inch Cover Size: 22cmx4.2cmx3cm/8.66inchx1.65inchx1.18inch Package Includes: 1 Set Door Dampers 1 Screw Accessories Pack Note: Please allow slightly errors 1-2cm differences due to manual measurement.