<p>A gauge (8) for measuring the diameter of wire rope (40) comprises a body (10) having a plurality of bores (16) therethrough. The bores (16) are of circular cross section and are of different diameters. The wire rope (40) can be passed through a number of the bores (16) to determine in which bore (16) it fits most closely, thereby measuring the diameter of the wire rope (40).</p>
