Marna Hard Resin Cleaning Sponge A powerful, double-sided kitchen sponge designed to remove stubborn dirt without detergent. Featuring Marna's original hard resin processed surface, this sponge provides extra scrubbing power for tough stains and buildup. The opposite side features a urethane layer designed to create rich, abundant foam, giving you both effective cleaning and excellent lather in one sponge. Please note: The hard resin surface is intentionally stiffer than a standard kitchen sponge. Product Uses Ideal for removing stubborn dirt and residue Suitable for pots, pans, and durable kitchenware Use with water alone when you want to clean without detergent Use the urethane side when rich foam is preferred Great for everyday cleaning of durable kitchen surfaces Product Details Material Cloth surface: Acrylic with hard resin processing Sponge: Polyurethane Size: Approximately 5.6 × 2.6 × 1.3 in (142 × 66 × 32 mm) Country of Origin: Japan Care & Usage Notes Do not use on delicate surfaces such as fluororesin-coated or lacquered products, as scratching may occur. Excessive rubbing may damage the surface being cleaned. Do not use in a hot frying pan. The sponge readily absorbs oil, so the surface may darken over time. This does not affect its usability. Do not use with chlorine bleach. Keep away from fire and high-temperature areas. Use only for its intended purpose.