Tovolo's Microwave Collapsible Food Cover helps keep food moist while preventing splatter, keeping the inside of the microwave clean. The large cover fits standard size plates and the vented holes allow the steam to release evenly preventing condensation. The collapsible feature allows for easy storage, an absolute essential kitchen tool to have. The cover measures 10.5 inches in diameter and 3.5 inches tall when expanded and collapses down to 1 inch, making it easy to store. You simply use the finger grips to lift the lid and then press down to flatten. This silicone cover's durable design has multiple lid perforations to allow steam to escape and keeps food moist. All the splatter stays inside the cover keeping your microwave clean.