●Reliable domestic shipping ●Training ball developed with the idea of building arm muscles and grip strength using centrifugal forces of rotors that rotate fast and gyro ●Equipped with auto start function ●9.5 oz (260 g) 27.6 x 21.7 x 21.7 inches ( ●Instructions included
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Description
Reliable domestic shipping
Training ball developed with the idea of building arm muscles and grip strength using centrifugal forces of rotors that rotate fast and gyro.