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, Assorted Pink/Yellow Or Purple/Yellow Colors.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, Assorted Pink/Yellow Or Purple/Yellow Colors.