Kraft Tool Co.® ST137 7.5" x 5" x 2" Grout Scrubber Sponge 24 per Case. Half sponge and half scrub means clean up in half the time. Hydra sponge on one side to wipe off excess grout. Coarse plastic foam scrubber on the opposite side to remove grout haze. The sponge part has large water holding capacity. The softness of the sponge prevents digging , scratching, or marring of new grout while cleaning up the tiles around it. The large, 7-1/2" x 5" x 2" sponge fits comfortably in your hand. Must order in quantities of 24, priced individually.