This versatile medicine balls provides a unique dual-handle design, allowing you to easily perform a variety of exercises, including core training, front squats, rotating lungs, etc. The durable outer rubber layer resists wear during high-intensity exercise, allowing you to maintain your long-term fitness goals.- FeatureIdeal for classic medicine ball workoutsFor various throwing and Slamming routinesHelps develop core strength, balance, and coordinationHollow design to ensure the elastic cushion and feel of the medicine ballTextured surface allows for a high quality grip even when wetIf used correctly, you can burn up to 600 calories in half an hour or 1200 in one hour!Equipped with an air valve making it possible to adjust the air capacity and overall firmness - Specifications:Name: Medicine Ball/Gravity Ball/Fitness BallColor: BlackMaterial: RubberPacking List: medicine ball X 1Weight: 3kg/6.6lb , 4kg/8.8lb , 5kg/11lb , 6kg/13.2lb , 7kg/15.4lb , 8kg/17.6lb , 9kg/19.8lb , 10kg/22lb Function: Arm muscle training, chest muscle training, waist training, squat training, explosive strength training.- 100% quality assurance: We have a professional team to provide you with the best after-sales service. If you encounter any problems, please contact us, we will help you solve it as soon as possible.