Welcome to the next evolution of the yo-yo, Hypercluster. With Hypercluster, you can do more than just tricks. Now you can BUILD & CUSTOMIZE your own, in nearly endless combinations! Building a Hypercluster is simple: Select your Skins, Choose your Core, and CRANK IT! to assemble. All parts are compatible and can be swapped to change the performance and look of your Hypercluster. Like your Speed Skins, but want to throw a longer sleeper? Crank on a Stamina Core. Looking for an outfit change? Attach a set of Skins with different designs. The Starter Pack has everything you need to get started: two Skins, a Core with precision bearings, and a Cluster Cable (high-performance yo-yo string).