【Clean your Grout 2 to 5 Times Faster】The unique, patent pending cleaning invention has movable brushes, placed to meet various tile widths, to clean more than one grout line at a time. The durable and adjustable brush heads slide back and forth to fit over any tile size from 2” to 16”. Remove brush heads for large tile, add brush heads for small tile. | 【Sturdy Stiff Bristles】Durable PP bristles scrub deep into grout lines, easily scrub away tough grime and dirt from bathroom, shower, tiles, po