Bandai Hyper Yo-Yo - HyperCluster King Cluster Easy to take apart and put back together. Customizable with other HyperCluster Series Yo-Yos to fit any YoYo players style! Mix and match the body, core, and bearing with the other 15 HyperCluster YoYos! Super fast spinning YoYo! Improves hand eye coordination and focus!