I took it out of the box but never used it, and it's been sitting there. The other box that can be connected is completely unopened and remains unused in its cardboard box. You can freely change the size, up to a maximum of 20 sheets. Please check the photos for details. I ended up not setting it up in my room, so if you can use it, please feel free to utilize it according to your needs! (^o^) One box has been opened, so I will wrap it for shipping. The other one will be shipped in its original cardboard box. I apologize, but since there will be shipping costs, I do not plan to offer a discount.