Put a Lid on it! These superbly designed, uniquely shaped silicone lids create a 100% airtight seal on any smooth rim surface. Works on stainless steel, glass, plastic and ceramic items. The airtight seal will keep food fresh for longer and seal in heat during cooking. Oven safe to 240° Celsius, fridge safe, microwave safe, food safe, dishwasher safe. These great lids help prevent stovetop splatters and retain steam during cooking. Prevents spills by creating an airtight, watertight seal on any smooth rim surface. Replaces plastic cling wrap and aluminium foil, good for the environment! The microwave safe silicone material allows for quick cooking, steaming and reheating.