22kt Gold plated Copper Link Chain sold by the foot measures approximately 17.5mm for the Circular shaped Links. The 22kt Gold plated chain has been twisted and has a satin finish for a refined look. The thickness of the links is 1.5mm and each link is soldered to ensure a secured link. Each chain link has been treated with an "eCoating" to supplement the durability of the metal to environmental factors such as oxidation. This coating is non-toxic and will retain the original luster of the metal.