A "Surprise Box" is a container filled with various items that are not revealed until the box is opened. These boxes are often used for gifts, party favors, or promotional items, creating an element of excitement and curiosity. The contents can range from toys and gadgets to snacks and beauty products, appealing to different age groups and interests. Surprise Boxes are popular in subscription services, where customers receive a new box each month with curated items. They can also be found in stores, often marketed as mystery boxes, allowing buyers to enjoy the thrill of discovering what they have received without knowing the specifics beforehand.