Made of food grade silicone and amp, airtight sealing strip to store liquids and solids without leaking out. Heat and cold resistant, keep your food fresh and antioxidant. Can be put in the refrigerator in the state of lying or standing. Scale designed for easy viewing the capacity, save more space. Safe for use in dishwasher, oven, refrigerator, freezer and microwave. Specifications: Material: Siliconecolor: Red, green, blue, clearsize: 7. 9 x 6. 9 inch (20 x 17. 5 cm)temperature: -60 --260. Packing list: 4* silicone food container bags color as per availability.