High-quality materials: The combination lock is made of high-strength zinc alloy, and the lock hook is made of steel wire, which is corrosion-resistant, high-temperature resistant, safe and anti-theft, difficult to cut, and will not be deformed or broken after long-term use. 3-digit combination lock: The combination lock is set with a 3-digit password, there are 1000 password combinations, the initial password is 000, it is not easy to crack, and it is safe and anti-theft. Lightweight and portable: The backpack lock is light and compact, easy to store and carry, which would otherwise take up a lot of space or be bulky. Widely used: The combination lock is suitable for indoor and outdoor use, suitable for luggage, suitcases, backpacks, briefcases, lockers, tool boxes, cabinets, bicycles and other items that need to be locked. The combination lock is 40mm wide, the inner height of the lock cable is 50mm, and the diameter of the lock cable is 3mm.