1、This lock is no need to keys, no waste pollutants, very friendly to the environment 2、Full‑mechanical structure, can withstand a very harsh external environment, and has a wide range of applications 3、The operation is simple, the unlocking time is relatively short, and the average unlocking time is about 10 seconds 4、The actual number of passwords is large and the security performance is high, and the probability of trying to unlock the lock is almost zero 5、With it, there is no need to worry about your property and items being stolen by others Item Type: Password Lock Product Size: Approx. 75×52×24mm/3x2x0.9in Material: Zinc Alloy Weight: 232.8g/8.2oz Application: Backpack, Travel Bag, Sports Bag, Doors and Windows, Lockers, Sales Cabinets, Business Gifts 1 x Door Padlock 1 x Manual