1、No need for keys, going out without burden, no need to bring a lots of keys like ordinary padlocks. 2、The whole mechanical structure can withstand harsh external environment and has a wide range of use. 3、High security, simple operation, and the unlocking time is relatively short. 4、The shape is stylish and beautiful, strong and reliable, the surface of the lock can be customized to any color and pattern that the guest likes. 5、The price is moderate, not only practical but also suitable for gift promotion. Features: No need for keys, going out without burden, no need to bring a lots of keys like ordinary padlocks. The whole mechanical structure can withstand harsh external environment and has a wide range of use. It can be locked in the luggage zipper head, drawers, cabinets, etc., and some password lock with special functions can also lock laptops, baby carriages, skis, lock fur and other high-end clothes, car locks, etc. The TSA combination lock can also be used for unpacking inspections at customs and international airports. High security, simple operation, and  the unlocking time is relatively short. The actual amount of passwords is high, 10,000 kinds of  passwords for 4-digit passwords padlock , and the probability of  trial unlocking is almost zero. The shape is stylish and beautiful, strong and reliable, the surface of the lock can be customized to any color and pattern that the guest likes. The price is moderate, not only practical but also suitable for gift promotion. Specification: Condition: 100% Brand New Model: US234 Material: Zinc alloy Color: Black Size: 80*40*21.5mm/3.15*1.57*0.85in Package Weight: approx.120g Application: Luggage, travel bag, trolley case, storage cabinet, drawer, business gift, personal gift, gift, promotional product. Package List: 1*4-digit Combination Password Padlock Note: If you are worried about forgetting the password you set, you can write it down or take a photo with your mobile phone.