This challenge coin features the emblem of the Royal Australian Regiment, making it a must-have for collectors of militaria. This medallion is a testament to the skill and bravery of the men and women who serve in the Australian Defence Force. Whether you're a military history buff or simply looking for a unique piece of memorabilia, this challenge coin is sure to impress. 45mm in diameter and 4mm in thickness. Comes with plastic sleeve. Australia Post Domestic Regular Letter Untracked.