Clear PVC boxes with tuck in tops and lock-tab bottoms. Tuck top boxes have a tuck top plus two small side flaps on the top opening of the box along the top edges and a lock tab bottom for more bottom strength. Boxes come flat.Also see Side Tuck Boxes which have tuck openings on either end and are used best with the opening on the ends not top and bottom as the boxes on this page. Material thickness: .25mmWe have Gold Silver and kraft bottom pads available for these boxes. See our Raised Bottom Box Inserts and Flat Bottom Box Inserts.Note: Length is the widest dimension of the opening into the box. Width is the smallest dimension of the opening into the box. Depth is the distance into the box from the opening to the bottom of the box.