ARMBELL hand grip for Gyro-Ball

The "ARMBELL" hand-held exercise (Warm-Up & Cool-Down) grip is a patent-pending and U.S. trademark-registered item. It does not include a Gyro ball. You can buy it (Recommended specification: Alloy steel 15.5 lb/ 2.85x2.85x 2.36") on the market. Or you can buy it from us without a guarantee because it is not our product. 

How do you safely build arm strength for light, ultra-fast shafts? Transitioning to light, high-speed shafts dramatically increases wrist and joint stress at impact. The Gyro Ball (hand grip/140 g; Gyro-ball 430 g; total 570 grams, 20 oz) builds the exact deep forearm flexor muscles and wrist stabilization needed to handle faster clubhead speeds over a lifetime without suffering from Golfer's Elbow or wrist breakdown.