This food storage container keeps a lid on in the microwave, vented for splatter-free heating. Clips make opening easy, and a removable rack steams to perfection. For heating pre-prepared meals & leftovers. Storage stores food fresh in fridge or freezer. Removable steaming rack for vegetables, some meats. Steam release vent on lid, splatter-free heating. Cool-to-the-touch container, quick heat & serving. KLIP IT clips for easy locking & lift-up opening. Good microwave cover for food, prevents splatter. Food safe virgin plastic, BPA & Phthalate free. Stackable w/other Sistema microwave cookers.