This is a very nice safe with a heavy door. Much heavier than I expected it to be. It was extremely easy to set my own digital combination numbers to open and lock the safe. It comes with 4 AA batteries to be installed inside the door and an led light comes on inside the safe when you open it. There are two heavy thick steel bolts driven by an eclectic motor when locking and unlocking with a combination you set with a four or six digit sequence of numbers you choose. It comes with mounting screws and plastic anchors but I will get much longer screws to use for better securement. And it comes with two emergency keys in case the batteries die or you forget your combination. The keys are round like used on vending machines so not easily picked as some other key lock designs. I'm very happy with this purchase and I'm sure you would be as well. The cost is very affordable making this a bargain and a great value in comparison to other similar safes out there. It also has a removable steel shelf and a piece of felt to cover the bottom or the shelf inside the safe. I think there should be two pieces of felt but I can't complain because it was a magnificent deal in my opinion. It's not fire safe protected but that's ok too. Great to store valuable items and important papers or even a handgun and ammo. I'm really glad I bought it.