Overview: Scrub Mommy Sponge, Flex Texture Side Hardens In Cold Water & Softens In Hot Water To Help Scrub Stubborn Messes, Resofoam Side Absorbs Water To Create A Sudsy Lather, Will Not Scratch Such As Non-Stick Cookware, Plastic, Copper, Fiberglass, Vinyl, Cast Iron, Chrome, Granite, Marble, Leather, Aluminum, Or Limestone Tile Product Features: Soft absorbent ResoFoam side is odor and stain resistant and suds generating! Scratch-free scrubbing Flex Texture side changes texture based on water temperature and rinses clean to stay fresh! Sanitize her in the dishwasher or microwave. Material is dishwasher safe Does not scratch surfaces; glass, stainless steel & non-stick cookware Will not smell after 2 months of use