Tenacious C Cast Iron Brush and Scraper. Cast iron pots and pans are the gentle giants of cookware. They're big. They're heavy. And they require a certain... sensitivity. With our toughest reinforced but not metal bristles and special scraper, this combo brush needs only water to safely remove even the most stuck-on bits. Like they say, no soap, no problem. Ultra tough wide-head brush safely cleans cast iron cookwareBuilt-in scraper removes even the most stuck-on bitsScrub away food, not your seasoning