Packaging: 100pack metal chains, each with a connector buckle. Size: Ball diameter: 2.4mm (approximately 0.09 inches); Metal chain length: 100mm (approximately 4 inches) Material: These ball bead chains are made using metal baking paint technology, with a smooth surface, comfortable hand feel, toughness and durability, not easy to fade, deform or break, and good rust prevention performance Adjustable: Our product features an adjustable design, allowing you to use pliers to cut it into any length according to personal needs, or connect them together to extend the length. Application: You can use it to hang nail files, labels, keys, dog tags, pendant necklaces, or make accessories. Very suitable for weddings, New Year's Eve parties, birthday parties, game days, clothing, gifts, giveaways, etc