Charles Viancin Winterberry Lid - Rectangle 9"x13" Creates an airtight seal around any smooth rim round surface. Prevents stovetop splatters Microwave & oven safe silicone material allows for quick cooking, steaming, and reheating Safe at high temperatures to for use in the oven and microwave, retaining steam during cooking 100% BPA free and environmentally friendly - eliminate your need for plastic wrap and tin foil Dishwasher safe for quick and easy cleaning