A blank of sheet material for forming a container is provided. The blank includes a series of four generally rectangular panels connected along a plurality of substantially parallel fold lines. The panels include a first spaced-apart pair of panels and a second spaced-apart pair of panels. Each of the second spaced-apart pair of panels is connected to at least one panel of the first spaced-apart pair of panels. The blank also includes a corner panel extending from each side edge of each panel of the first pair of panels, and a lateral flap extending from each side edge of each panel of the second pair of panels, wherein each lateral flap has free side edges.

A clamshell container having an anti-bind feature is provided. The container is comprised of a tray and a cover, each having a first panel and rear panel foldably connected along a rear fold line. One or both of the rear fold lines may be interrupted by a cut suitable for allowing the rear panels to flex or bow when the cover is hingedly rotated relative to the tray. A rear cut may be provided generally coextensive with each of the fold lines. The cuts can have an arcuate shape and may be convexly curved toward an interior of the container.

A blank can include a first main panel; a locking tab extending from and separable from the first main panel, the locking tab comprising a neck and an ear; a second main panel connected to the first main panel and facing the first main panel; and an end panel extending from the second main panel, the end panel defining a locking opening, the locking opening sized to receive and lockably engage at least a portion of the locking tab upon assembly of the blank into the box; wherein the end panel comprises a second end panel, an inside end panel, and a connecting panel joining the inside end panel to the second end panel, and wherein the locking opening is defined by at least the connecting panel and the inside end panel.

A container having a bottom with a plurality of edges and a plurality of side walls extending from the bottom such that a number of the plurality of side walls is greater than a number of the plurality of edges.

A child-proof container including storage to be closed by a closure system. The container includes a first coupling portion carried by the closure system and a second coupling portion carried by the storage and configured to cooperate with said first coupling portion for locking the container in a closed condition. At least one of the sheet materials of the storage and the closure system includes a bonded and/or adhesively bonded overlap zone at which a plurality of notches are defined to define breaking portions of the overlap zone.