Cast Iron Scrubber is specially designed to clean cast iron pans, woks, and griddles easily without removing the seasoned surface. The built-in silicone honeycomb core dries quickly, and won't sour or produce bacteria. The outer chain quickly scrubs away baked-on, caked-on food bits without removing the seasoning, that coveted buildup that accrues over time to create a naturally non-stick surface. It's heat-safe (to 450-degrees Fahrenheit) for cleaning hot pans, and won't ever melt or rust. Simply scrub the cooking surface under hot running water. Made from 18/8 stainless steel and heat-safe silicone, it's dishwasher safe for easy cleanup. Not intended for pans made from materials other than cast iron.