No dyes: manufactured without added dyes. Scrub Mommy is a two-sided sponge, with each side performing a different role. Use the FlexTexture side to remove debris, then turn it over and use the ResoFoam soft side to absorb liquids and clean the dry surface. Temperature-controlled sponge: Scrub Mommy's FlexTexture side becomes firm in cold water for a hard wash and soft in warm water for light cleaning. A versatile design means it's the right tool for every job. Scratch-free: Scrub Mommy is safe to use on more than a dozen different surfaces, including glass, stainless steel, cast iron, and nonstick coatings. More efficient: The ResoFoam side of Scrub Mommy is 6 times more absorbent than the leading brand and produces 60% more soap foam. Its FlexTexture side is lab-tested to remain odor-free for up to 8 weeks.