The Jamboo by YoYoJam is a composite-material yo-yo first introduced at the 2008 U.S. Nationals. It is made out of laminated bamboo that is then machined to the shape of the yo-yo. The Jamboo also has the classic YoYoJam aluminum weight rings on the outside, as well as a C-bearing and silicone O-ring response. During development, Dale Bell experimented with different types of wood for the prototypes of the yo-yo.