For All Your Cast Iron Cookware, Stainless Steel Pans, Hard Anodized Aluminum Pans, Enameled Cast Iron, Woks & Casseroles. The Knapp Made CM Scrubber is the world's best pots and pans scrubber. Cleaning cast iron cookware with the CM Scrubber is safe, fast and easy. Well seasoned cast iron pans will now stay seasoned. Each ring is handmade from 316 grade stainless steel - the highest grade of stainless steel, used for professional food service applications and surgical instruments. Easy To Use - Run your pan under warm water and scrub. Cooked on residue will release quickly and easily with the CM Scrubber. No need to use detergents. The best time to clean cast iron pans is shortly after cooking when they are just warm to the touch. Easy To Clean - Cleans up quick in hot soapy water or in the dishwasher.