This Band Cap replaces the standard cap on any ASP T-Series, Button Baton. The blue line that is recognized around the world as a tribute to law enforcement-the police are said to be the "thin blue line" that separates order from chaos. Sell Sheet (pdf) ASP Quick Look - Blue Line Collection https://youtu.be/ng45IGRkCE4 ASP Training Room - Baton Accessories https://youtu.be/N7dbZCpO7SM