The hooks are gold fill. Great for even sensitive ears! These are super lightweight and can be worn all day to make a big statement, whether with jeans and a t-shirt or when dressing up for a night out. Glass beads and Raw Brass 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.