Durable lockable key box; Our safe is constructed with high quality rust and corrosion resistant aluminum alloy and heavy duty stainless steel to the highest quality standards and tough enough to withstand hammering, sawing and lifting. Safe and secure locker; Our 4-digit adjustable combination lock, made from zinc alloy, allows you to set your own combo code with 10,000 personalized access codes. It also includes a protective cover to hide and protect the dials from dust, rust, sun, rain and snow. No longer worry about poor quality products. Large storage capacity; At least 5 house or car keys can be locked in this mountable box as well as key fobs, credit cards and USB sticks. It is suitable for outdoor and indoor use and can be used for emergency access or keyless entry for family, pet sitters and friends in an apartment, garage, garden, bathroom. classroom, factory, company, store, college, dormitory, vacation home, etc. Easy installation and operation; included all necessary mounting hardware consisting of 4 screws as well as instructions. Simply insert the screws and plastic expansion anchors and drill them to the wall or other hard surface and make sure they are secure. The lock door is easy to open when you use the correct numbers. Password setting: 1) Correct password: 0-0-0-0 is aligned with the scale line to open the lock. 2) Turn the coding switch lever from A to B to enter the adjustment state. 3) Turn the password wheel to set the new password you need. 4) Flip the coding lever from B to A, exit the setting state, confirm the password on the scale again and close the lock cover.