Gyroscope/LED Stress Bal

タイトルまたは説明

• Features:
  • Easy yet effective exercise to improve your forearm, wrist, finger strength
  • Power up your shots, strikes & take your games into next level
  • Prevent injury, sore wrist and tennis elbow (lateral epicondyle ) or even get rid of it
  • Great for fitness, rehabilitation (therapeutic) or just for fun
  • It's a very nice gift, especially for sport lovers and musicians
  • Integrated computer balanced stainless steel rotor (cheaper models only can reach 6,**0 ~ 8,**0 RPM, because unbalanced rotor causes too much vibration, so don't let the lower price fool you.) 
  • Six blue bright LED Lights will start automatically, no batteries required (Powered by a embedded small generator)
  • Max spins over *2,**0RPM
  • Great benefit for musicians, guitarists, pianists, drummers
  • Color: Blue + white