Freezer, Microwave, Dishwasher and Oven (up to 475°F) -Safe to soften butter, temper chocolate, harden or cool in ingredients in a single bowl. Dishwasher-safe as well. Durable, Long-Lasting Ceramic resists chipping, cracking, crazing and staining, and is guaranteed with a 5-year no-chip limited warranty - see product warranty for details. Fits all 4.5 and 5 quart tilt-head KitchenAid Stand Mixers. sold separately. Easily transfer ingredients from your mixing bowl to baking pan with less mess. Includes (1) 5 quart ceramic bowl