Features: Solid aluminum alloy construction protects the box from being damaged by hammer, saw, drill and so on, impact-resistant and durable. High security, adjustable combination lock with 4 digit, offering thousands of different combinations. The box has enough space to store valuable things like keys, room cards, car key, etc. Easy operation. You can set your favorite numbers as your passwords. Widely applied to home, factory, office, warehouse, shops, health club and other commercial areas. Specification: Condition: 100% Brand New Material: Aluminum Alloy Optional Color: Gray, Orange, Blue Inner Size: approx. 11*8*4.5cm/4.33*3.15*1.77in Weight: approx. 829g/29.24oz Package List: 1 x Key Box 1 x Instruction Note: It is not recommended to use a "A-A-A-A" combination that is easy to crack. 1、Solid aluminum alloy construction protects the box from being damaged by hammer, saw, drill and so on, impact-resistant and durable 2、High security, adjustable combination lock with 4 digit, offering thousands of different combinations 3、The box has enough space to store valuable things like keys, room cards, car key, etc 4、Easy operation. You can set your favorite numbers as your passwords 5、Widely applied to home, factory, office, warehouse, shops, health club and other commercial areas