I received Tenyo's Mental Bento today and there remains one glaring issue. Thanks to the clever mechanism, a textured edge is present at the bottom sides of the box. Tenyo seems to 'cover this up' by adding another identical edge to the other side of the box, as if to play of the fact it's part of the box's design. But that part of the box always seems to draw attention to itself, and when asked by spectators I can never find a way to play it off. I wish they just kept it on one side. Any help of the matter?