The Yale 40 litre safe gives solid security for your essentials like keys, passport, cards and cash, with enough room to fit it all in. You can set a PIN that is 4 to 8 characters long - use numbers or letters, anything that's easy to remember. After 3 wrong attempts, it locks you out. And if you forget the PIN, you can use the two keys that come with it. Good to know- With over 100,000 combinations, it's very secure and tough to guess your code- It has two LED indicators - it's green when it's successfully opened, and red for a wrong PIN or low battery- You can install it on the floor or wall - it's got pre-drilled holes and screws included