The Power Scrub brush is actually a really powerful scrubbing brush that’s designed into 4 in 1 function. Grout and corner scrubber brush with dense V-Shape stiff bristles; Floor scrub brush with squeege to scrap the dirty water and foams. Corner cleaning brush grout cleaning brush to clean years of dirt from grout lines. Use the V-shape scrub brush to clean: grout, glass tile, ceramic tile, stone tile, hardwood floor, marble floor, marble tile, tile floor, gaps, corners and more. Efficient grout scrubbing with its specialized bristles, this cleaner brush effectively removes dirt, grime, and stains from grout lines, restoring them to their original cleanliness and brightness with minimal effort. V-shape bristles design make it easy to clean the grout lines, recesses, corners, cross crevices, high and low gaps, corners and other hard to reach areas. The cleaning scrub brush is designed with an ergonomic handle that provides a comfortable and secure grip, allowing for easy and efficient cleaning. Read Less