This is a minimalist statement collar. This fits flat at the bottom of the neck. Clip Lock Closure. Gauge is flattened for shine . 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. 4mm flatten. Soft Round edges Waterproof Tarnish Free Hypoallergenic Stainless Steel