BirthdayExpress Dr Seuss Party Supplies - Beverage Napkins (20) Includes (20) 2-ply paper beverage napkins, each measuring 5"x5" in size. 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.