The More It’s Filled, The Longer It Stays Chilled. Fill It To The Top To Keep It Hot. Flip-Box® premium – The top fold-able insulation box for home usage and during transport! It is space-saving, easy to handle, has a volume of 26 quarts and shows best insulation characteristics. Keeps cold things cold and hot things hot: outstanding insulation properties for up to 10 hours. Creates space: in three steps the height is decreased by 60%. Kind to your back: less than 2 pounds in weight. Protects your foods: extremely tough, shock-absorbent and food-safe. Remains clean: breaks down and is dishwasher safe. Reusable instead of disposable: can be used over and over. Recycling instead of rubbish: the Flip-Box is fully recyclable. Exterior dimensions: Folded 16.5x 16.5 x 4.5 In. unfolded 16.5 x 16.5 x 9.4 in. Interior volume: 26 quarts Net weight: : 1lb Material: EPP (Expanded Polypropylene). This cooler/insulation box is designed to be iceless. If you need items to be cold for a longer period of time, ice packs may be used, but loose ice may leak out of the cooler