stainless steel, durable and rust-free. Surface mounted design for easy installation with screws. Adjustable tension, widely applicable to left and right swing doors. Exquisite workmanship and high performance for long-term use. Closes doors up to 68 kg. automatic door spring DOOR Safety Spring Door Closer Adjustable Door Closer Adjustable tension, widely used in left and right swing doors, exquisite workmanship, excellent performance, can be used for a long time. Removable Installation Design This door closer is very simple to install and easy to use, just follow the steps in the manual to install it. Provide a Quiet Sleeping Environment This door closer can provide a quiet sleeping environment for your baby to avoid being woken up by loud noises while sleeping. Product color: white. Product quantity: 1. Product size: 117*128mm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.