Collapse boxes have one special property: they can be folded flat, so transport and storage are more efficient.
They are often made for applications where storage space is limited (like boutiques or stores). The minimal height of such a box is 55mm.
Collapse boxes are a type of Tray-Cover box (PKO). They don’t include a standard hard tray. Instead, these boxes are made out of cover with additional foldable sides attached.