1. Enhanced security: This recodable combination lock adds a four-digit password function to the ordinary bolt lock. You can set up to 10,000 possible passwords, greatly improving security and privacy. The default password is 0 - 0 - 0 - 0. There's no need for a key, so you don't have to worry about losing it. 2. Sturdy and durable: The bolt lock is made of high-quality alloy materials and comes with a solid steel bolt with a diameter of 10 mm. It's coated with a waterproof layer to prevent the lock from rusting, withstand harsh weather, improve wear resistance and hardness, and prevent lock-picking. It's built to last. The handle is also made of solid steel, not easy to break or loosen. 3. Two installation methods: Our combination sliding bolt lock supports two installation methods, namely vertical installation and horizontal installation. 4. Suitable for indoor and outdoor use: The combination lock is easy to install and can be installed in the most compact spaces. This combination lock is suitable for various occasions, including school or home lockers, sheds, cabinets, storage areas, garden gates, farmhouses, wardrobes, wine cellars, and anywhere you want to ensure security and privacy. Note: All data are manually measured, so a 1 - 3 cm error is allowed. Due to differences in light and monitors, there may be some color differences. Please refer to the actual received item.