【Enhanced Security】This recodeable combination lock adds a 4-digit combination to ordinary door latch locks, allowing you to set up to 10,000 possible combinations, significantly improving your security and privacy. The default combination is 0-0-0-0, so no key is needed, eliminating the worry of losing it. 【Sturdy and Durable】The door latch lock is made of high-quality zinc alloy, with a solid steel bolt measuring 10mm in diameter and coated with a waterproof finish. This protects the lock from rust and weathering, improves wear resistance and hardness, and ensures resistance to picking and long-lasting durability. The handle is also made of solid steel, which is not easy to break or loosen. 【2 Installation Methods】Our combination slide latch lock supports two installation methods: vertical and horizontal. The slide latch lock kit comes with a lock cover for horizontal use and a metal side door loop for vertical use. (Note: The latch must be aligned with the lock cover or the side