They basically took three pizza boxes, stacked them on top of each other and put them in a larger box so that it somewhat looks like a giant present. They've offered similar box meals in other countries before.
The Triple Treat Box includes two medium one-topping pizzas, an order of breadsticks or flavor sticks (flavored breadsticks) and a Hershey's Ultimate Chocolate Chip Cookie.
The new Triple Treat Box is available for a limited time, while supplies last (i.e. until they run out of the tall box).