A packaging element for accommodating at least one product. The packaging element may include a blank which has the following portions connected to one another by folding lines: an accommodating portion having at least one receptacle, the shape of which is matched to the shape of a product to be accommodated; a first side-wall portion; a first cover-wall portion; a second side-wall portion; and a second cover-wall portion. The first cover-wall portion may have at least one hollow, and the second cover-wall portion may have at least one protrusion with a shape and position complementary to the hollow.