Chainologie Antique Copper Chain _#36: 3.5x6.5mm Medium 3-and-1 Cable Chain (per 25-foot spool) Popular medium 3-and-1 soldered-link chain, suitable for bolder earrings or for necklaces, bracelets and anklets Lead-free, nickel-free brass chain links made of flattened wire reflect the light Large oval links measure approximately 6.5mm long x 3.5 wide; Small links measure approximately just over 3.5mm long x 3mm wide. Antique Copper plate for vintage-look jewelry