This is a sample pack includes all of our thickness of zinc sheets, plus our Slate Gray, Cupric Sulfate, Black Magic and Iridescent Bronze Patinas. Includes one piece of .020", .027", .027" Soft, .030", .040", and .060" (pieces measure approximately 3" x 3") This is a great way to feel the differences in thickness if you are undecided or if you want to practice bending or soldering.