These beautifully crafted bronze sparrow skull post earrings are hollow, and detailed on all sides. These cute stud earrings feature a sterling silver post and ear backing. Your customers can wear these as powerful talismans to evoke confidence, start new projects, and energize their creativity. Our bronze is a high-quality Italian alloy of copper and tin that contains an anti-tarnish compound which delays, but does not eliminate, eventual oxidation.