Proper size: the height of each resettable waterproof padlock is about 5.5 cm/ 2.17 inch, the length is about 2.1 cm/ 0.83 inch, and the thickness is 1.2 cm/ 0.47 inch, compact in size, light in weight, easy to carry, which is applicable for outdoor activities, like sports, travel, business trip and so on, ensuring your travel safety and portable to carry .No rust and quality: featuring hardened alloy lock beam, oil-injected zinc alloy lock body, the 3 digit combination lock is stable and quality, with high hardness and rust resistance, can serve for a long time .How to use: firstly, set the padlock locker code to the unlocked state (initial code 000), secondly, locate the black code lever at the bottom of the lock body and press and hold it, thirdly press and hold it, turn the code, and set the code, fourthly, change the password successfully, please remember the password .