The Unger Grout and Corner Scrubber features uniquely shaped bristles makes cleaning grout and corners fast and easy. V-shaped bristles get deep into grout for a superior clean and a round head allows for easy corner cleaning. Blue Scrub-Zone bristles scrub tough mildew, grime, and soap scum from grout, shower door tracks, bath tubs and more. The True Grip handle provides maximum comfort while allowing you to scrub at any angle for extra scrubbing power.