A mould made of stone from the Bronze Age. It was used to make spear blades. The molten metal is poured into the hollow part, and when it hardens it is set in the shape of a blade.

Moulding (or molding) is the shaping of raw material using a solid frame of a particular shape, called a pattern. It is a process used in manufacturing. A mould is a hollow container that will hold the liquid material until it turns solid. The liquid hardens or sets inside the mould, adopting its shape. Materials commonly used in moulding include plastic, metal, glass and ceramic.