Free Keys, Super Convenient: You don't need to bring keys anymore; No need to prepare a key branch for each family member or hide the keys under the doormat. One password for your whole family. High Quality Material: The Mini Safe is made of sturdy zinc alloy, will not rust, not afraid of hammering, sawing, slamming and rain. Built-in and impact resistant access Shell is waterproof for hammering, sawing 4-Digit Passwords: 4-digit passwords provide 10,000 different password combinations, You can set any number as the password combination. Please note that the original password is 0000, after resetting, it is best to take a photo and save it, otherwise it will not be able to open Wide Range of Applications: Internal dimensions: 8 x 4 x 3 cm. Can be installed outdoors or indoors, such as gates, cabinets, schools, garages, warehouses, emergency entrances, etc. It effectively solves the problem of carrying too many keys or easily losing keys Note: The data are all measured manually, please