The Really Useful Boxes storage boxes are available in sizes ranging from 10.5 liters to 62 liters. You can purchase the storage boxes in sets of either 3 or 5. These boxes are ideal for storing a wide variety of items. Made from 100% polypropylene, they are particularly lightweight. The storage boxes can be easily stacked inside one another and on top of each other. They feature handles and rounded corners, and are transparent, allowing for quick and easy visibility of the contents. The Really Useful Boxes come in sizes of 10.5 liters, 17.5 liters, 33.5 liters, or 62 liters. Additional details: Material: 100% polypropylene, with handles, with rounded corners, stackable, very lightweight, quantity: available in sets of 3 or 5, color: transparent.