PLEASE NOTE: I cut off the “M” that is attached at the end so I can fit a charm on it. It still has the 585 stamp to prove authenticity of solid gold. from the website: Link Length: 6 mm - Link Width: 2.1 mm - Link Thickness: 0.4 mm Your boyfriend denim just found its match. Wear it every day — whenever, wherever. 14k Gold When properly cared for, our 14k gold pieces can last forever. With its beautiful, subtle hue, you can wear your jewelry every day, everywhere.