This is an Anpanman-shaped bento box. As you can see in the photo, the included parts can be disassembled. I've used it about twice. I wrote my name on the inside of the lid, and some of the writing has left a mark when I removed it (photo 5). The lid is secured by hooking a rubber band or string around the sides of the bento box (photo 6). Please refrain from purchasing if you are overly concerned about minor imperfections.