A bilingual (English cover; Japanese contents) multi-page yo-yo instruction book sold by Tsukuda Original of Japan. Tsukuda was a doll, toy, and software maker. In 2002, Bandai bought Tsukuda Original.
Page 30 shows three Duncan yo-yo models licensed and branded by Tsukuda as the following: Master, Gold Class, and Wheels. The Tsukuda-branded models are hard to find.