Carlisle polyglass plate cover is designed for use in microwaves and heated carts. Heat resistant to 300 degrees F yet stays cool to the touch; excellent insulation properties. Impact-resistant material offers a superior alternative to standard fiberglass covers. NSF listed and dishwasher safe. Microwave safe. 11-3/4-inches inside diameter. Measures 12.62-inches bottom diameter by 3-inches height. Bone color.