＊Instant purchase welcome, midnight silent purchase OK ◎ ＊Welcome bulk purchases, feel free to comment ＊SALE held at any time in the comment section! · · • • • ✤ • • • · ·· · • • • ✤ • • • · ·· · • • • ✤ • • • · · This is a training ball developed with the idea of using the centrifugal force of a rotor that rotates at high speed to train arm muscles and grip strength. · · • • • ✤ • • • · ·· · • • • ✤ • • • · ·· · • • • ✤ • • • · · ・Please understand that the item is stored at home and will be shipped in simple packaging before purchasing (* ´-`) ・Please check the actual photos for the condition of the product♪ Reference images may be used. ※In order to sell at a slightly lower price, we may ship the item out of its box due to shipping costs. ・Please contact us before evaluation for any problems after purchase or receipt. ark Powerball Gyro Ball Twist Ball Auto Start Wrist Strengthening Snap Ball Grip Strength Muscle Training Training Dumbbell Sports Forearm 70mm x 55mm Red 10-38