MATERIAL - Bohemian, alloy Plated Chains harder to fade, and selected High-quality crystal，Hypoallergenic crafted from alloy.Lead-free,nickel-free eco-friendly alloy. It will never fade and is not allergy for your skin.No harm to health. It is 7 in length but they are made of elastic rope, suitable for almost hand of women. ADJUSTABLE SIZE - Length is Adjustable, Durable Rope, Never Need to Worry About Size Problem. please don't bring them to take a bath, if they get wet, dry them in time, and don't pull tassel hard to avoid breaking.