Multi-Level Scrub Brush 10" With 1-3/4" Blue Crimped Polypropylene Bristle Length Foam Block All Synthetic Materials Crimped polypropylene bristles provide long service even with solvents and other harsh chemicals. The unique shape of this brush makes it easy to clean a wide variety of surfaces like baseboards, under counters and around equipment in food service or industrial settings. Durable, structural foam block. Blue fibers. Recommended handle NM117060 and NM119060