Housweety 20 Silver Tone Pretzel Charm Pedants 23x13mm Zinc metal alloy(Lead and nickel safe)size:23mm x 13mmhole:2mm(1/8")Thickness:2.8mm(1/8") It's fashion, creative, full of special means, is a very useful accessory,will Fit All Chains. Zinc alloy stainless silver pewter jewelry and craft charms. Perfect for jewelry making. Assorted themes array of subjects and styles for all kinds of interests for parties or groups charms