[Durable alloy material] Environmentally friendly baking paint process, zinc alloy shell, zinc alloy lock core, exquisite and durable. High-strength zinc alloy can withstand drops and impacts without damage. Safe and reliable protection for your luggage and lockers Enhanced 4-digit password The 4-digit password provides 10,000 different password combinations. Luggage locks are three times more secure than other locks with a 3-digit code. You can set any number as your password combination and no one will know except you. No keys required, no need to worry about losing your keys Wide application: The padlock can be used for a variety of items except luggage or suitcases. They can be used while traveling with a suitcase or backpack, or at home, at school, at the gym or on a backpack. Zipper, luggage, gym, briefcase, wardrobe, tool bag or laptop bag, etc. Long shackle design 103mm long and 3.2mm wide shackle to better lock objects through small holes. You can lock small luggage such as backpacks through the zipper hole. Due to its longer length, multiple zippers can be bundled together for added security. Note: The data is all manually measured, please allow 1-3cm error due to light difference and display, there may be color differences, please refer to the actual item received.