Our Aluminum Black Harley Military ID Tags are made of colored anodized aluminum (AL). They come standard with a 24 inch stainless steel ball chain. We offer a 30 inch stainless steel ball chain or a 30 inch endless stainless steel curb chain as upgrades for a small additional cost. The Aluminum Black Harley Military ID Tags are professionally engraved providing you with maximum wearing time without loss of information through use. The Aluminum Black Harley Military ID Tag can handle 1 to 6 lines of personalization with 20 characters per line of information.