Product Description A Duncan favorite for over 60 years, the Butterfly Yo-Yo offers a wide shape that makes landing the yo-yo on the string much easier. It features a flared shape, steel axle and durable plastic body that can withstand impact. It's great for learning the basics of yo-yoing! From the Manufacturer Butterfly is the original, wide body/flared shape yo-yo and is the best-selling string trick yo-yo of all time. Designed for beginner yo-yo players learning basic string tricks, Butterfly features a wide string gap and steel axle that makes landing the yo-yo on the string much easier. It's durable plastic body and bright colors have made Butterfly a favorite toy for kids of all ages for over 60 years.