BirthdayExpress Dr Seuss Party Supplies - Empty Favor Boxes (4) Includes (4) empty favor boxes. Each measures 6"x4"x3" and are great for birthday party favors! Please note: some assembly required. Add matching tableware, favors, accessories, or a party kit bundle to complete your Dr. Seuss birthday party. Features classic Dr. Seuss characters such as Cat in the Hat, Grinch, Horton, Sam I Am, Lorax, Thing 1, and Thing 2.