Abstract: A container for use in forming a sealed package has a base a first end wall (16), two converging side walls which either meet at an end, or join a second wall which is shorter than the first wall. The container may contains a food product which is typically provided as a series of discrete pieces or units. The sides of the container define interlocking means, in the form of cylindrical depending lugs and mating lugs or apertures such that a plurality of such containers can be attached or interlocked to one another along their sides, to form an assembly of such containers. It is preferred that the angle subtended by the side walls and divided into 360° produces an integer such that when sufficient containers are joined side wall to side wall the resultant combination of units is generally circular.