Quantity: 1 sterling silver charm Diameter: 21 mm (13/16"); weight: 4.0 grams The charm comes with a 6mm sterling silver keychain/split ring. No soldering necessary. The charm is hallmarked and fits a traditional charm bracelet or a chain necklace. Made in USA Twin Towers .925 solid sterling silver charm. The charm is hallmarked, comes with a 6mm sterling silver keychain/split ring, and can fit a traditional charm bracelet or a chain necklace.