Created by melding two unique materials together in the familiar rectangular sponge shape, Sponge Daddy® is a game changing combination of supersoft, absorbent ResoFoam™ with FlexTexture™ scrubbing surface. Scratch-free sponges makes an excellent choice for everyday household cleaning. Rinses clean and resists odors. In warm water, it becomes soft and compressible; in cold water it becomes firm to give even more scrubbing power. Dishwasher and washing machine safe. Safe for use on wood, plastic, copper, cast iron, fiberglass, stainless steel, vinyl, car exterior paint, non-stick coatings and glass.