Duncan Imperial Yo-Yo 2-pack - Blue/Red. The Duncan Toys Imperial yo-yo is the original All-American classic. A timeless favorite, the Imperial has been the yo-yo of choice for many generations of beginning yo-yo players. The Imperial features a narrow string gap, steel axle, and durable plastic body in bold colors. The plastic construction means more resistance against accidental falls and hard knocks on the floor—a few things associated with getting the hang of using the Yo-Yo. The Imperial is great for learning the basics but can be used by all skill levels.