This Combat Service Identification Badge is for the 1st Marine Division. This enamel finish 2 inch pin is ready to be worn on Army Service Blue (ASU) Uniform. Can be placed securely on your uniform with its pin backing to display properly and meet regulations. This CSIB could also be displayed to honor your service in a shadow box as a Veteran. The 1st Marine Division is the oldest and largest unit of active duty and is stationed in Base Camp Pendleton, California. 1st Marines are the ground combat element of the I Marine Expeditionary Force. The 1st Marine Division combat service identification badge is 100 percent made, handled, and inspected in the USA.