From the Dr. Seuss Collection. Dr. Seuss Happy Birthday Deco Trim. The perfect addition to your Seuss party decorating, this colorful deco trim features bold blocks of color and a parade of marching Seuss characters! Trim also reads "Happy Birthday" in bold white text. Includes 12 deco trim strips which measure 2.25" x 37" each, for a total of 37 feet.