If you're still hiding your spare keys under the doormat, it's time for a better, more secure solution. the master lock reinforced security select access key lock box features a 105mm wide metal body for durability and accepts multiple house keys and access cards. stop hiding your keys under the doormat or under a flower pot: select access is the perfect solution to share access to your keys. the wall mount design offers permanent installation. set-your-own 4-digit combination for keyless convenience and increased security. the protective cover protects combination dials from weather, dirt and grime. the limited lifetime provides peace of mind from a brand you can trust. This is a great key safe for families with children who may need to enter the house when an adult isn't present. It can be mounted anywhere. the mounting kit is included in the package for ease of use.