The Carlisle 4132305 Sparta Spectrum tile and grout brush with red bristles has a molded-in scraper on one edge to help scrub tile and grout for removal of mold and mildew buildup, and it is Food and Drug Administration (FDA) compliant. The plastic block is designed for handheld use as well as for attachment to a handle (sold separately) using the threaded holes. The crimped polyester bristles are 1" long and offer abrasion and chemical resistance, shape recovery, and extended life. The overall dimensions of the block are 9 x 1.25 x 5.79 inches (L x W x H). (L is length, the horizontal distance from front to back; W is width, the horizontal distance from left to right; H is height, the vertical distance from the lowest to highest point.)Carlisle manufactures food service equipment and supplies and sanitary maintenance tools and supplies for commercial, industrial, and institutional facilities. The company, founded in 1954, is headquartered in Oklahoma City, OK.