New With Tags, Madewell Shape Study Earrings in Gold NWT Madewell Gold "Shape Study Earrings" Small but impossible to ignore, thanks to their sharp geometric shape and softly worn finish. Stud earrings to wear every day.7mm x 7 7/10mm. Gold-plated brass, silver-plated 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). Care instructions: Clean your jewelry after each wearing with a soft cloth.