Antique Copper Hammered Hoop Earrings These earrings are handmade of Copper, shaped, hammered, and burnished to a beautiful Antique Copper finish. The hoops are 16 gauge, thin enough to be very light, but tumble hardened to remain durable. Ear wires are 20 gauge hypoallergenic Niobium. 1.0", 1.5", and 2.0" diameters. Shipped in gift box.