Tovolo Vented, Easy Grip, Collapsible Microwave Cover, 10.5 Inch, Red Multiple lid perforations allow steam to escape, which keeps food moist while splatters and messes are contained; it also has finger grips making it easy to lift The microwave safe cover expands to 3.5 inches but collapses to 1 inch for easy storage; Use thumbs to easily "pop up" and press to flatten It can be used expanded or flat on bowls; reduce waste and movement of paper towels or other wraps in microwave Heat Resistant up to 600 degrees F The large 10.5 size fits most plates and bowls, is BPA free and dishwasher safe