Sentry Sentry Velcro Id System Black . Many Times When We Wear Id's On Our Person During A Call Or When We Do Work They Are First To Go Out On Duty And The First To Be Found On Our Uniform Shirts & Uniform Caps And Socks That Are Covered In Blood Sweat Or Other Toxic Substances. The Id Systems Velcro Fastening Is Designed To Eliminate Hassles In Closing Your Badge On A Belt Or Sleeve. By Folding Over And Binding The Id Sleeve Or Sock Towel We Provide A Safe And Easy Method Of Id Exposure While Allowing For Easy And Bold Identification. Package Contents: Sentry Velcro Id System