MADEWELL NWOT Chunky Oversized Hoop Earrings in Gold New without Tag! Chunky oversized hoops to upgrade any look. (And, no worries these gold-plated brass earrings are hollow so they won't weigh you down.) Diameter: 2 1/2". Brass. Sterling silver posts are naturally soft due to the high silver content (just bend 'em back into shape if they get out of whack). Nickel-safe.