Abstract: A container for solids or liquids is formed to have two walls which converge and meet at the apex thereof. A container opening is formed at the apex. Each of the walls converging at the apex is extended beyond the apex to form a flap or spout hingedly connected to the container at its apex. The contents may be sealed in the container by making the flap or spout to be an enclosed triangular shape and/or by sealing the flap or spout against one of the converging walls. Thus, access to the contents of the container requires either that the triangular spout or flap be cut, and/or that it be unsealed from the wall. The container may be resealed by applying a plastic clip to the folded flap or spout and/or by providing a reusable fastening to selectively retain the flap or spout against one of the converging walls. The container has a triangular configuration at its apex. This configuration may be continued throughout the whole of the container or it may be provided at its upper portion only.