I got this as a gift.  I honestly just now realized it was two layers.  I have only been using the top portion.  There is quite a lot of room, even without the bottom.  It does have hangers on the top of the lid inside where you can hang about 8 necklaces.  It comes with a key to lock it.  I gave it a 4 star because of the material it is made of, which is kind of like a brushed suede, so dust and dirt can stick to it a little easier, and it is a little heavy.