This offer includes one Association of Police Officer Paramedics of the United States Challenge Coin and our Police Officer Paramedic Uniform Pin. Our coins are 1.75" solid brass coin with a 3D image on the front and the APOPUS crest on the back. Choose either between our 2015 Skull, 2017 Nott-Bower coin or 2018 Knight coin. The pin is made from an epola resin-based substance It is die cut and stamped from a sheet of copper, and the pins are cut out to the outline of the design shape by shaping a mold. The product is heated to 800-900 degrees. After being baked at a very high temperature, the glass enamel is sanded and polished to flush out the metal lines that separate the colors. In this process, it reveals small details beautifully and it gives a glassy smooth finish and lustrous quality to the pin. The pin measures 1.75" x 5/8".