Self lock cake boxes are very similar to the 4 corner cake box. These boxes are very beneficial for delivering cakes at the door step. These boxes ensure the safety of cakes while being delivered. This is a traditional 4 corner squared box. The self lock cake box has a system that has a separate tuck in piece to close the box after which no tapes are required to close the box. We at kwick Packaging company offer you fully customized boxes in all shapes and sizes in an eco-friendly material. We provide free shipping in USA with no set up and die charges.