Made of B-324 photoluminescent vinyl film, our "Glow-in-the-Dark" arrows, footprints and dots are compliant to 10+ hour glow life which meets or exceeds the following standards: ASTM E2072-00/E2073-02/E2030-02, ASTM E162/E648/E662, SMP 800C, IMO Resolution A. 752(18), ISO/CD 15370, PSPA Standard 002 Part 2 1993 Class A Rev. 2: 09/99.