A copper-based, nickel-free alloy that mimics the look of gold. Often referred to as Merlin's Gold. 85% copper, 15% zinc, CDA no. 230, dead soft. All sheets measure 12" x 12" (305mm x 305mm) and are stocked in a variety of thicknesses. These sheets do not have the same adhesive-backed protective plastic sheets like our copper, brass, and nickel silver sheets, so surfaces will need to be polished.