This thin 3mm herringbone gold necklace is what layering necklaces is all about. Made in 14k gold filled, this chain will not tarnish. This bold gold chain will pair nicely with daintier chains, long and short, or make a statement all on its own. Dimensions 3" thickness and 16", 18" and 18" + 2" extension Materials 14k gold filled *Hypoallergenic *Nickel free *Tarnish resistant *Water resistant *Handmade in USA Notes ~ Soft jewelry pouch included. ~ Limit contact with water for longer durability and prevent tarnishing ~ Avoid contact with household chemicals like perfume, sprays, lotions, sunscreen and hair products. ~ Store your jewelry separately from other jewelry when not in use. Secure clasps and closures to avoid scratches and tangled chains. Ideally, we recommend to keep your jewels in a safe and dry place like a jewelry box or the soft pouch included. ~ Clean your jewelry with warm water and mild soap and use a polishing cloth if needed. ~ Please message us for any questions.