About this item: High 1000g pulling force: The high-quality 1.2m steel cable has passed multiple tensile and elasticity tests. The pulling force is strong and not easily broken. The 1000g pulling force prevents panic from forgetting to close the door and provides a greater sense of security. Quick installation: The automatic door closer requires no drilling and is installed with a non-porous adhesive (install and use; after 24 hours, strong adhesion is achieved). After applying the adhesive, the door closer has a very strong viscosity that is difficult to remove, making it easy to install and highly durable without damaging walls. Function: This multifunctional automatic door closer automatically closes all doors. When you're learning and working, avoid repeatedly standing and opening the door to improve learning and work efficiency, prevent mosquitoes and flies from entering the room, and keep cooking fumes out of the living room. Wide range of applications: Our door closers are