BirthdayExpress Monster Jam Party Supplies - Empty Favor Boxes (4) Includes (4) empty favor boxes. Each measures approximately 6"x 4"x 3" in size. Some assembly required. Add matching tableware, favors, accessories, or a party kit bundle to complete your Monster Jam birthday party. Features favorite monster trucks including Grave Digger, Max-D, El Toro Loco, Monster Mutt, and Mohawk Warrior.