This MR series absorbent roll is made of polypropylene and is grey. Along with meeting the standards for 29 CFR, 49 CFR, this sorbent roll features stitch bonded matzigzag stitching, is not flame resistant and has 23 gallons absorbed per package and is designed for universal use and in the following applications: universal industrial. It measures 150 feet length x 33 inch width.