The Mr. Coffee Grinder Mill IDS77 Replacement Part is a black plastic hopper bowl with a blade designed for grinding coffee. This electric grinder has a capacity of 12 cups and is specifically made for coffee beans. The included hopper allows for easy replacement and maintenance of the grinder, ensuring a consistent and high-quality coffee grinding experience. The blade grinder method ensures efficient and precise grinding of coffee beans, perfect for brewing a fresh cup of coffee every time.