The silicone spill cover is made of food-grade silicone, BPA-free, non-toxic, environmentally friendly, reusable, and durable. Suitable for all smooth surfaces, plastics, glass, stainless steel and ceramics. The overflow stopper lid cover effectively avoids splashing and edible oil dripping, preventing the soup from overflowing. It can also be used as a steaming basket or heat preservation cover to form an air-tight, waterproof and leak-proof seal for reheating and storage. The spill-proof lid can be placed in an oven, refrigerator, dishwasher, and microwave. The maximum heat resistance can reach 446 F, and the minimum cold resistance can reach -104 F. Diameter: The boil over spill stopper diameter is about 28cm, suitable for most pots and pans. The silicone cover has a steam release port and a silicone handle, which is easy to grasp. The spill-proof lid is safe and practical to use in a microwave oven, easy to clean, odorless, sealed, and can also be cleaned in a dishwasher.