20-gauge Artistic Wire Buy the Dozen™ sampler packs. Each package contains twelve colors, each on a 3-yard bobbin spool. 36 yards total. Spool colors may vary. Permanently colored copper wire, perfect for all your jewelry and craft projects. 20-gauge Artistic Wire offers you an all-purpose wire size, great for stringing and lashing beads. 20-gauge wire also works well for a variety of wire wrapping functions.