The Really Useful Box is a transparent, solid plastic box with a tray insert for multi-purpose storage.These 7 litre boxes come with a lid and clip lock handles to keep the contents secure. They are designed for 12 x 12 inch paper and can be used for storing a range of items such as office supplies, school stationery, crafts items, and many more. Made from sturdy polypropylene, these storage boxes are extremely durable, and transparent to allow easy identification of the contents. These boxes can be easily stacked on top of each other, offering a handy space-saving option. The 7 litre Really Useful Box has a tray insert, ideal for home; office, school and arts and crafts storage.. External Dimensions: L 400 x W 350 x D 85mm. Internal Dimensions: L 340 x W 307 x D 70mm . Weight: 800 grams