Stitch Box Mini Case Retro Plastic
This is a plastic case from Stitch from a long time ago. There is no obvious damage, but the silver part has some bald spots.

Also, the metal opening at the front seems to have loosened somehow.

You can't see any dirt unless you look closely, but it seems like it can still be used with some maintenance.

The size is about the same as the L size shown in the photo, with the bottom.