Chain By the Yard (36inches, 3 feet = 91cm) Brass Cable Chain with a bead every 8 links. Approx 2.5mm Wide(bead), 1.7mm wide cable link. Each link is approx 2mm Long and 0.3mm thick. This Chain is Soldered and plated. Colour will Last Approximatley 8-12months. Longevity depends on the person wearing, as well as how they treat their products.