Our Daytona Quick Connect Lock, Meets And Exceeds D.O.T. Safety Standards FMVSS 218. It Can Be Added Onto Any Helmet. It Comes With Four Additional Interchangeable 3-D Lock Bodies. The Quick Connect Lock Is Made Of Tempered Steel And High Impact Nylon. It’s Unique Metal To Metal Design Optimizing Maximum Strength While Eliminating Accidental Openings.