first container

Abstract

The present invention relates to a first container. The first container comprises: a shell; a lid; a first coupling wall; a first plurality of rib walls, the first plurality of rib walls comprising: a first rib wall; a second rib wall; a second coupling wall; a second plurality of rib walls, wherein the first plurality of rib walls and the second plurality of rib walls are configured to be in sliding engagement with a plurality of male couplings extending from a second container, the second plurality of rib walls comprising: a third rib wall; a fourth rib wall; and a latch receiver configured to connect with a latch of the second container, the connection between the latch receiver and the latch preventing the plurality of male couplings from sliding from engagement to disengagement with the first plurality of rib walls and the second plurality of rib walls.