Lockable: Our secure outdoor door locks can be pulled open from the inside, and customers can also bring their own padlocks to lock with regular padlocks outside for increased security Easy to install: The self-locking door lock set includes all the parts and accessories required for effective installation, and you can complete the installation according to the installation instructions without special tools Self locking door lock: The spring wire lock is made of high-quality carbon steel, which is sturdy, reliable, hard, stable, and durable. Coated , rust proof and waterproof. The spring and cable are both made of stainless steel, ensuring a long outdoor service life Easy to open: The self-locking mechanism of this door lock ensures easy opening and closing, making it suitable for daily use in outdoor courtyard doors Multi purpose: Self locking door locks are very suitable for wooden doors, wooden fences, vinyl doors, and can also be installed on aluminum alloy doors or metal doors, Weight: 0.440924524 Pounds, Manufacturer: CYDZSRA