This custom pin is made of wood and bronze back pin. You need to send us a clear, high-resolution photo (please check the instruction in the picture) for the portrait design. Our studio uses laser engraving machine to engrave on the high-quality stainless steel that provides a clear and permanent mark, which will not rust, fade, or oxidize over time. It can be a unique gift for your family and friends. You can wear it on the bag, hat, shirt and etc.