12 Pack Magic Sponge Eraser: Value pack for daily cleaning, easily clean various stains such as oil, marker, coffee, desktop scratches, etc GRS Certified: Our magic sponge eraser has passed GRS certification, eco-friendly and safe. Non-scratches & good absorbency Easy to Use: Wet-Squeeze-Eraser-Rinse, 4 easy steps to clean, no detergent required, just add some water and wipe gently to remove different stains like magic Clean Various Surfaces: Suitable for door, table, microwave, shoes, bathtub, grout, tile, baseboard, etc. Note: You can cut small pieces to test on the surface before use ISDGER Warranty: Provide 24/7 Customer service to help you solve any problems you have met about this magic sponge eraser The melamine foam has a unique micro-structure with tiny scrubbing fibers When activated with water, it acts like ultra-fine sandpaper to lift dirt and stains Works through physical action rather than chemicals - just water alone What makes it effective: The micro-scrubbers reach into surface grooves to remove built-up grime Can tackle tough stains like scuff marks, soap scum, and crayon marks Works on multiple surfaces including walls, bathtubs, and countertops The "magic" is really just the melamine foam's ability to break down and lift away stains that regular sponges and cleaners struggle with. The melamine foam acts like ultra-fine sandpaper, so it can damage delicate finishes. Surfaces to AVOID: High gloss or polished surfaces Dark, brushed, satin, or faux finishes Bare or polished wood Copper and stainless steel appliances Non-stick coatings Vehicle paint/body  Safe surfaces include: Painted walls (test first) Scratch stain Bathtubs and shower glass Countertops (except delicate stone) Doors and light switches Important tip: Always test on a small, hidden area with light pressure first. The product specifically warns against using on skin and requires rinsing on food-contact surfaces.