Chain mail was just often a type of armor consisting of small metal rings linked together in a pattern to form a mesh. This chain mail dishcloth is constructed of small tight rings that are so flexible they feel like a piece of cloth. When cleaning cast iron cookware or any other pan that has debris, it can be used with salt to remove the debris from cooking. It does not degrade the finish on a seasoned pan and needs no detergent. To clean, simply place in the dishwasher. Not for use on coated pans. 100% Stainless Steel, lifetime warranty.