Aluminium Raised Pavement Marker Motorway Slip Road Studs NK-1004 Body material: Aluminium Filling: Epoxy+Quartz Lens Material: PMMA Colors: White, Red, Yellow, Green, Blue Size: 100*100*20+50mm MORE Half Circle Motorway Studs Light With Anchors Half Round NOKIN Motorway Stud Lights With Anchors For Expressway-NOKIN Solar Stud