From the Yomega packaging: "From Yomega's experimental technology division, comes the next evolution in revolutions. Announcing the gamma edition of the Yomega Brain series - the Power Brain. This yo-yo contains a smooth, piston-like, four-way synchronized cluth system that engages simultaneously. The new system delivers prolonged spin time and super smooth automatic returns. It is the most advanced auto return technology ever created. With the Power Brain, Yomega proves once again that it crushes the learning curve in yo-yo play."
