Detailled description
Diamètre: 70 mm, 255 g, le petit rotor peut atteindre 12000
tours/minute grâce à ses mouvements de rotation, selon la
position du bras et du poignet, activation de différentes
parties musculaires et de tendons
Ball for Training hand/arm Spinball, grey/green
Reference : 8172025
Ball for Training hand/arm Spinball, grey/green
Reference : 8172025
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