Road stud, Solar Stud, Road marker, Solar road marker, Reflective road marker, Pavement marker, Reflective pavement marker, Raised reflective pavement marker, Road reflector, Solar road stud. Most anti-pressure road studs in china to be used in most heavy traffic. Key features: Size: 104 x 104 x 20mm Lens Size: (52+97)*28mm. Weight: 350g, 330g