These lightweight and versatile earrings are easy to throw on for meeting friends for coffee and then look amazing later when you're going to see your favorite band. Studs: sterling silver. Great for sensitive ears Brass oxidizes over time, meaning it will change the more you wear it to give it that beautiful aged look. You can also polish them to their original shine very easily with many home remedies or polishing cloths. Avoid wearing them in the shower to keep them sparkling.