BoxesBoxes, enclosures, and racks are types of protective and organizational structures used in a variety of settings. Boxes are enclosed containers with a fixed shape and size, typically used for storage or transportation. They can be made from a variety of materials, such as cardboard, plastic, or metal, and come in a range of sizes and shapes to accommodate different items. Enclosures are similar to boxes, but are typically larger and more sturdy, and may have additional features such as doors or locks for added security. Racks are structures with horizontal shelves or slots, used to store and organize objects or equipment. They are commonly used in warehouses, retail stores, and other settings where items need to be organized and easily accessible.