The Magic Foam Eraser Sponge with 3-Layers is a chemical-free stain remover and cleaner using water instead of harsh chemicals for general cleaning in auto and marine detailing and around the home or office. Literally, anywhere dirt, grime, and stains are present. Two-layers of Magic Eraser Sponge surround a blue rubber core that allows for a better grip, and 100% of both sides of the sponge can be used. Foam Sponges are tough enough to scrub away dirt, grime, and scuff marks, yet gentle enough to clean delicate surfaces such as leather seats and couches. Great for interior and exterior car detailing. This Sponge is ideal for cleaning leather seats, door panels, wheels, rims, vinyl, and rubber surfaces economically and safely. These foam sponges also remove tar or bug residue from bumpers, windshields, and glass.