PinMart EMT Caduceus Gold and Blue Medical Enamel Lapel Pin Available as a single item or bulk packed. Select your quantity above. 10 Pack of Lapel Pins Emergency Medical Technician Caduceus Pin. EMT is proudly stated in blue enamel on this 3D gold plated Caduceus. The caduceus is frequently used by the medical field, military medics and has become the unofficial symbol of medical professionals and medical associations. SIZE: 1" Each pin comes with a clutch back and is individually poly bagged.