This WP series absorbent pad is made of polypropylene and is white. Along with meeting the standards for 29 CFR and 49 CFR, this sorbent pad absorbs leaks, spills, and overspray, for light-duty industrial and maintenance applications, is not wringable, is not flame resistant and has 22 gallons absorbed per package and is designed for use with oil and in the following applications: oil-only. It measures 18 inch length x 15 inch width.