Magic Cup Eraser is the eco-friendly creative product– compressed melamine sponge. The internal micro-fibers (smaller than ten thousandth of hair) with delicate texture, deep into the micropore inner of cup, thoroughly to clean the tea residue, coffee stains and wine stains, quickly and magic effect. It is quite safe and healthy. Powerful Cleaning: Micro-fibers, water only. No detergent needed: safe, eco-friendly, no residue. Magic Cup Eraser adopts the compressed melamine sponge, developed by the exclusive technology to improve greatly the quality and increase the density to 16 kg/m³, based on the simple melamine sponge (density 8kg/m³is poor handling, easy break, easy dreg, easy wear and tear). High density: Dense texture, stronger cleaning. More durable: Abrasion-resistant, almost no breakage and dregs. More flexible: good toughness, free to knead. Free samples are available to test the quality. Payment terms: T/T, Paypal, Western Union and more. Discounts are available on considerable order qty. Pls send inquiry or call us directly: +86 13348396206 if any quries.