Set Your Own Combination: The combination lock is 4-digit, provides 10,000 combinations, harder to break than 3-digit locks. The lock is strong, cannot be removed by human force. In addition, the bolt of this lock is strong enough that it cannot be removed or cracked by human force. You no longer have to worry about security. Easy to Use: Setting or resetting your own combination is simple and straightforward. The original password is 0000. Each combination lock is equipped with clear instructions in the shoulder bag. Setting or resetting your own combination is simple and easy to use. Easy to Carry: Measures about 8 cm x 2 cm x 4.2 cm, easy to carry. Can be put in a handbag or backpack for outdoor sports, travel, business, etc. It has a medium size and a suitable weight of about 100g, but maybe a little big size to lock the suitcase (if you don't mind, it is possible)Sturdy Construction: Made of zinc alloy and steel, easy to carry. It is rust-proof, weather-resistant, small in volume and light in weight. It is so portable that you can use it in many places without sacrificing qualityWide Application: Specially designed for indoor and outdoor use. You can use them for gym, school, work, sports and personal lockers, lockers, outdoor fences, storage closets, sheds, containers, hasps, hasps, gates, cupboards, storage, toolboxes, etc., whether outdoors or indoors