SHEET Metal by Imagine Crafts, 20 piece Combo Pack, Small Size 1.00 inches (25 mm) Circles. Circles and Squares. These satin-finished SHEET Metal aluminum shapes, 0.26 mm thick, provide a versatile metal surface for many crafting purposes. Sturdy yet easily cut and embossed with die-cutting / embossing machines. Use as card embellishments, in jewelry making and for mixed media projects. Color with StazOn inks and with irRESISTible Pico Embellishers.