Specifications: Made of high quality aluminum foil, these bags are thermal insulated and durable. They help to keep food warm/cool and fresh for a long time. Heat insulation property provides constant temperature effect. Foldable bag is convenient for storage. It can be used as travel lunch box, cooler bag, storage bag, food organizer, etc. Item Name: Thermal Insulated Bags Material: Aluminum Foil Quantity: 20Pcs Features: Thermal Insulated, Portable, Food Bag, Disposable Size: 20cm x 25cm/7.87" x 9.84", 25cm x 30cm/9.84" x 11.8", 30cm x 30cm/11.8" x 11.8", 35cm x 35cm/13.7" x 13.7", 30cm x 40cm/11.8" x 15.7", 40cm x 40cm/15.7" x 15.7", 40cm x 50cm/15.7" x 19.7" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 20 x Thermal Insulated Bags