... has got the IAAF ceritficates. All weather 13mm thick rubber running track roll system, come in roll form with width of ... 1220 mm to 1250mm ,base is 8mm black or grey rubber ,and the top is 5mm thick red or green ... or blue or yellow rubber ,To form a rough texture surface ,Easy and fast ... -slip , soft and soundproof. Mainly used in sports athletics track. Rubber running track