Silicone Suction Lid, functional and aesthetic renewal. (1) Strong suction effect: better food preservation: raw or cooked. Easy to control with the new handle. (2) Keep juices from evaporating and avoid splatter when heating in the microwave or oven. (3) Versatility: Safe for use in oven, microwave, refrigerator, freezer. For cooking and preserving. (4) 100% Platinum Silicone: adaptable to multiple materials and diameters (5) Stackable: don't take up space.