Charles Viancin Violet Overboil Ring - Large 13" FDA Food Grade Silicone, stovetop safe, oven, microwave , and dishwasher safe Unique design fits a variety of pot sizes to match your cooking needs Raised edges prevent liquids from boiling over onto your stovetop Central opening allows you to stir your food without worrying about spills Serving is simple without worrying about difficult clean-up afterwards