... EN1463-1 of U.K. Photometric value could exceeds plastic road stud:single reflectsize:100x100x20mmcolor:white,yellow,cyan,red and so ... on.weight:180g,packing:56x22.5x22cm,Quantity:100pcs/ctn. Plastic road stud:double reflectsize:100x100x20mm.color:white,yellow,cyan,red and so ... 175g,packing:56x22.5x22cm,Quantity:100pcs/ctnThis kind of road stud could exceed American ASTM standard and standard EN1463-1 ...