兩手放在手把處，當球滾動至S形軌道的末端時，迅速改變軌道的方向，接駁球的運行，讓球在2個變換軌道上持續地運轉不掉落，訓練動作的靈活反應。適合全家人的手部及肩關節運動。 產品符合 CE 安全標準
Grip the Slewing Track with both hands and open and close it to maneuver the equipment. The two S rack variations serve as dexterity development for children and adults to improve reflex. Product conforms to CE certification.
