Plastic Sealing Bags Food Cover Elastic Stretch Adjustable Fresh Keeping Bags Descriptions: Resistant to high and low temperature, the use of temperature range -20 ~ +220 , can be used for refrigerators, microwave ovens, electric oven. Completely isolated from internal and external gas flow, good sealing. Used in the refrigerator to cover the bowl, pot, pots, etc., will not smell, because completely isolated from the air, can achieve the best preservation effect. CONVENIENCE- Reusable Silicone Food Bags is great for the microwave, steamer, refrigerator, freezer & sous vide cooking. HERMETIC SEAL AND LEAKPROOF- Our silicone food storage bag are designed with Airtight seal,which can makes it easy to carry on and go for a camping trip. Easy cleaning: Very easy to clean, safety for use in dishwasher or wash it by hand. Specifications Material: PE Package: 400PCS x Food Storage Bag