Great gift for the rockhound or mineral collector. Each plate is 100% made with robust aluminum material in the USA and comes with pre-drilled holes for hassle-free installation. Measuring in at 12" x 6", it is the perfect size to decorate any vehicle or wall as a stylish statement piece. .: Material: 100% aluminum. .: One size: 12" × 6" (30.5 × 15.2 cm). .: Made in USA. .: 4 holes for attachment. .:The product does not come with mounting hardware.