k-lite aluminum road stud, aluminum road marker, aluminum pavement markers, raised pavement markers, cat eye road stud, cat eyes Super aluminum road stud Exceeds the standard of ASTM D4280 and EN1463-1 Size: 103x103x22mm Stem: 50mm Crust: Aluminum Load capacity: 25KN Reflective lens color: amber/white/red/green etc. Photometric values: double or three times the standard of ASTM D4280 and EN1463-1