Patent ID: 6915946

Claim:
A packaging container, comprising: a preformed, rigid first unit of U-shaped cross-section having a generally flat base wall and opposing side walls; and a preformed, rigid second unit of U-shaped cross-section having a generally flat base wall and opposing side walls, the second unit configured so that the side walls of the first unit are fitted within and embraced by the side walls of the second unit when the first unit and second unit are assembled as a container, the opposing side walls of the first unit having a plurality of embossings therein at different heights and the opposing side wall of the second unit each configured having an embossing formed therein, such that the embossing of each side wall of the first unit engages the embossing of a corresponding, mated side wall of the second unit, such that the engaged embossings secure the first and second units to one another, wherein each of the embossings on the opposing side walls of the first and second units extend fully longitudinally along the length of each of the aide walls, and wherein the embossing in each side wall of the second unit is engageable with any of the plurality of embossings in the corresponding, mated side wall of the first unit.