Hello! I am selling this brand new 14k gold filled rounded box chain necklace in the 1.7 mm. It is 20 inches. I bought this necklace from Etsy and the seller is MoonStarsJewelry. The necklace has a matching lobster claw clasp, strong, durable, and comfortable. The end rings are soldered. It’s a great necklace if you are starting your jewelry collection and want to add charms or pendents to it. It originally cost $135.