Not functional, will not stay together none whatsoever!! The front or back will stay together. Don’t waste your money. The rating for this item is no star. This order has 24 of these so call boxes and they want me to keep them and give me a small portion of my money back saying get help from someone else, which I did, they just won’t stay together , or stand anything like the picture. It would not submit without putting a rating. I give it a no star