Heavy Duty Medicine Ball An explosive and kinetic alternative to traditional weights, you can perform hundreds of exercises that work every area of your body and improve flexibility, coordination, and movement Add a medicine ball to supercharge basic calisthenics, or try rebounding for an active, exciting way to work your arms and core We've gone back to the basicsFree Shipping for Flipkart Plus Members or Make cart value above 500 to avoid shipping Rs. 40.