Product details list use on vehicle glass, leather, plastic trim, and other interior surfaces, and also on tougher exterior areas such as car wheels and outdoor surfaces.
Descriptions state magic erasers are water-activated: wet and squeeze the eraser to activate the scrubbing action, then rinse it after use so it can be reused multiple times.
They are sold as sponge-form erasers and commonly come in multi-count packs; product details show examples like 2-, 3- and 6-count packages.
Product details list removal of fingerprints, marker and ink, dirt, and other stubborn or built-up grime.
Kit descriptions show the eraser bundled with interior tools such as a windshield cleaner brush with replaceable microfiber pads, multiple detailing brushes (including an air vent brush), a soft dash duster, chamois and microfiber towels, and a small spray bottle for cleaning solutions.
Product details highlight use for large, tough messes (for example, car wheels) as well as interior tasks such as cleaning glass, leather seats, plastic trim, and engine bays.
The described workflow is: wet the eraser on both sides and squeeze to activate the scrubbing action, scrub the mess, then rinse the eraser and reuse it as needed.