1.Ceramic road stud (3WASIA-FS-T001) consist of a heat-fired ,vitreous, ceramic base and a heat-fired ,opaque, glazed surface to produce the properties Ceramic markers'' glazed finish protects against weathering especially during rain, excellent day time visibility, available in high visibility white or yellow Dimension : D102mm*H20mm ; Anti-Collision Resistance〉30 ton PRICE: 0.5 US $ FOB Shanghai China