Features a U.S.M.C. MOS 1345 Engineer Equipment Operator design Hand-crafted, high-gloss, enamel finish front Aluminum, sublimated insert back (Not a Decal!) 1 3/4" in diameter Officially Licensed by the U.S. Marine Corps This U.S.M.C. MOS 1345 Engineer Equipment Operator Challenge Coin is proudly offered by MilitaryBest. This Officially Licensed Marine Corps coin has beautiful enamel finish on one side and an organized crisp clean U.S.M.C. MOS 1345 Engineer Equipment Operator design on the opposite side. MilitaryBest is honored to contribute a percentage of the sale of each USMC coin sold back to the United States Marine Corps in support of the USMC MWR program.