This is a minimalist statement collar. It is round tube shape sitting perfectly at the bottom of the neck. Lobster clasp Closure with extender so it is absolutely secure Gauge is round and high shine 14K Gold finish. Silver This is the comfortable necklace layer in a choker length Great for adding charms or pendants. Steel heavily plated in high shine finish. This a tube made piece so it is light and flexible. This is very comfortable no hard edges. Lots of look. Definitely comfortable day and evening. 1mm Thick tube wire. Flexible and smooth Lobster Clasp Extender14"- 16 Waterproof Tarnish Free Hypoallergenic Stainless Steel