Auto Bottom Lock with Full Flap - 4.2 x 4.1 x 4.2 Inch (11 x 10 x 11 cm)

The Auto-Lock bottom with full Flap, also called a 1-2-3 bottom box, features four flaps that fold and lock to form the bottom. This style is more cost-effective than the Tuck Top Auto Bottom but may require more time to assemble. Because this style features a stronger bottom, it can be used for heavier items due to its bottom snap closure.