1. Almost indestructible, made from high impact engineering plastic with compression resistance over 16 tons. 2.Large footprint gives maximum surface area for adhesion. This also makes it less prone to sinking during hot weather . 3.Will withstand the most arduous traffic conditions and be durable . 4.With good character of reflectivity equal to the intensity of diamond grade. 5.Resistant to corrosive effects of salt and grit . 6.Suitable for centre and edge line demarcation . 7.Approved by the Department of Transport for use on all types of roads 8.Complies with JT/T 390 ----1999 of China.