Double Link in Loop 2.5MM, 14/20 Gold Fill, Chain for Permanent Jewelry, "Double Helix"Introducing the new series of chain by the foot designed specifically to work with permanent jewelry welders. These high quality "dainty" chains are a sporty size while maintaining incredible strength for a long life without the price of solid gold. Gold filled is an amazing alternative at an incredible price. For our full selection of chains please click here Features: Material: High quality gold fill for a luxurious finish and superior durability.