Aesthetically gorgeous, totally functional, and ever so ingenious, the 8 inch lid is perfectly sized for cups and mugs. Reheat in the microwave, keep your drink warm, and prevent spills. Dishwasher safe and easy to clean by hand too. These suction lids turn any bowl into a storage container; fits the most common round container sizes. Reheat or steam food in the microwave/stove, bake with them in the oven - heat resistant to 550°f.