Combining extra coarse high-twist, solution-dyed nylon fibers with abrasive solution-dyed fibers, the Colorstar Crunch provides exceptional scraping and wiping action in an attractive tweed-patterned mat. 3/8' thick and weighing 27 oz. per square yard, the Colorstar Crunch is also anti-static making it ideal for use around electronic equipment. Has a SBR rubber backing with 20% post consumer recycled content and it's certified slip resistant by the NFSI. Also available with an oil- and grease-resistant 100% Nitrile rubber backing. Choose from 5 attractive tweed colors, and select from Cleated backing for use on carpets or Smooth backing for hard floor surfaces.