These tuck end auto bottom boxes feature a pre-glued folding carton along with quality bottom construction. The bottom of these tuck boxes can be conveniently folded into a flat shape. Additionally, the bottoms of these tuck boxes can also be restored automatically back to their sealing status once the box is stretched. Thanks to the complex structure of these custom printed product boxes, you can be assured of a convenient and sturdy packaging solution. A locked in or friction position is used to hold the extended top flap in place once it is tucked in. The tucks on these auto bottom tuck boxes may have either shore locks or friction fit to ensure a more secure closure.