The Large flat brush is best for getting the biggest jobs done quickly. Ideal for large jobs with lots of surface area. This brush head is compatiable with the FORTUNE DRAGON Spin Scrubber. Includes: 1 x Extra Wide Large Flat Replacement Head. The Spin Scrubber is not included. Works on: tile, grout, showers, tub and more! Includes 1 Replacement Head. Waterproof Brush Head! Helps cut down on scrubbing.