Our most popular mirror size! This 3 inch kit contains everything you need to make your own mirrors in your MultiMaker outfitted with 3 inch die set, ProMaker m300, Tecre, or other US made button maker!! Includes shells, collets, shims, mylar, and real glass mirrors. All you need is the marketing idea! These make excellent keepsakes, positive gifts, or the coolest salon promotional item ever!