Malleability is the property that enables a body – particularly a metal – to be extended in all directions by hammering or rolling without breaking. The degree of malleability is gauged by the thinness of leaf or foil which it is possible to produce. Gold is the most malleable of metals, and can be beaten into almost any shape. Malleability is not equivalent to ductility, the ability to be drawn out without breaking. Lead is malleable but not ductile.