The posts are made with sterling silver. Each pair of earrings is handmade. This means that each piece is hand cut, drilled, and sanded. A lot of time and love are put into making each pair the best quality. Please keep in mind they are still made of clay so handle with care. Please Note: Due to marbling, texturing, and other techniques, the earrings may slightly differ from the photo you see, while keeping the same design. This makes each pair unique to you.