Ball gymnastics ... http://www.amazon.in/SPRI-Dual-Grip-Xerball-8-Pound/dp/B009YPERPG  Dual-handle, easy-grip medicine balls provide plenty of med ball training options. They are the perfect choice for performing rotational abdominal exercises, upper extremity cross-body patterns, lower body dynamic and locomotor drills, and explosive two-handle sport movement activities such as golf swings, tennis strokes and many more!