Thank you for viewing! This is an IKEA FILFISK freezer bag, 2.5 l. It's a reusable storage bag made of silicone. I bought it from IKEA a year ago for home use, but I completely forgot about it and haven't used it, so I'm putting it up for sale. I plan to pack it flat for shipping. From the manufacturer's website: A freezer bag that keeps food and dishes fresh while neatly organizing your freezer, refrigerator, and food storage. You can see the contents immediately through the transparent window. Product Details Perfect for heating food in the microwave, freezing leftovers, meat, fish, and vegetables. This freezer bag can be taken out of the freezer and heated in the microwave immediately after removing the clip. Perfect when you're in a hurry. You can put anything in it, from leftovers and fruit to snacks and food for travel. Dishwasher safe and comes with a convenient zipper. Can be used repeatedly. Helpful Information Wash this product before using it for the first time. When putting food in the bag, do not exceed the line mark on the side of the bag. Materials and Care Information Material Bag: Silicone rubber Packing: ABS resin Care Instructions Microwave safe Freezer safe Dishwasher safe Not oven safe To keep the food cover clean, make sure it is completely dry before storing it. Air drying is easy.