Artistic Wire has manufactured an exclusive line of wire for use in your creative projects. Artistic Wire is used for jewelry, beading, scrapbooking, stamping, home & garden decor and many other crafts. Finish: Bare Phosphor Bronze Materials: Unlike other Artistic Wire which contains a copper core, this wire is solid bronze. This wire does not have a tarnish resistant coating and will natural patina as it ages. Finish: Bare Phosphor Bronze 20 Gauge Thick PLEASE NOTE: Artistic Wire's platings and color coatings are permanent, but this does not make them immune to scratches and dings. For least risk of damage to the wire's surface, we recommend using nylon jaw pliers whenever possible.