"They are Marines. They don't have a nickname and they don't need one. They get their basic training in a Marine atmosphere at a Marine post. They inherit the traditions of Marines. They are Marines." --Gen. Thomas Holcomb,17th CMC Ladies, wear a lapel pin that displays where you received your Marine Corps indoctrination with our 4th Recruit Training Battalion Lapel Pin. Features: Made of Zinc with soft enamel. Black nickel plated. Measures: 25.4mm (W) x 25.4mm (T). 1.5mm thick. Includes 8mm rubber butterfly clutch.