These came as a flat package and you open them up, place the bottom inside and you are good to go. They seem well made so you should get long term use from them. Each box has an attached cover to help keep what is inside dust free. They also have a velcro strip to help keep them closed. When you are done with them, just take the bottom back out and fold them down flat and you can store them in a drawer or on a shelf till you need them again.