Gamma Brain Wing with the auto-return smart switch, lets beginners practice holding a spin, with the patented centrifugal clutch providing automatic returns. Turn off the switch and Gamma Brain delivers high performance ball-bearing play for advanced string tricks. As a value-added bonus included are Yomega Mania DVD, extra string, and a trick book. Excellent choice for a player progressing from beginner to advanced skill levels. Yomega #812W for ages 8-12 yrs.