Hg Copper Shine Cloth 1 Cloth (31 x 31cm) Will help maintain the lovely colour & shine of all your red or yellow copper objects. Ideal for quick & regular polishing of all copper objects & HG Copper Shine Cloth can also be used on brass or bronze. A specially impregnated cloth made from a high quality textile variety which can shine slightly oxidised copper, brass or bronze, without effort. The size of the cloth means that the metal need not be touched with bare fingers, so that rapid re-oxidation due to fingerprints is avoided.