Solar Motorway Road Stud Heavy Duty For Tunnel-RUICHEN Solar Road Led Road Stud For Airport In Durban-Nokin Motorway Road Studs 2021-12-10 Reflective cat eyes aluminum solar led road stud 360 degree solar glass road stud, also known as solar cat's eye road stud, solar road marker, night vision road stud, etc., is made of glass as raw material and composed of two glass hemispheres with different diameters.