No need for a second piercing with these double-hoop earrings. Hammered to add a textural touch, they come in a modern sculptural shape. - 23 mm x 23 4/5 mm. - 95% recycled brass, 4% titanium, 1% cubic zirconia. - Do Well: crafted from recycled factory scrap metals that may otherwise go to waste. - Nickel-safe. - Clean your jewelry after each wearing with a soft cloth. - Imported.