XPRT Fitness Soft Wall/Medicine Ball Core Strength and Conditioning Muscle Building Core Exercise 18 lb. Wall ball training is a great way to develop strength, coordination, balance & core stability. Wall balls are used for wall exercises, including side throws, hammer throws, squats, passes & twists. Soft cotton batting with crisscross tie laces for safe throwing and catching and securing the inner weight. A durable commercial-grade wall ball is built to last through rigorous workouts. You can use them for intensive workouts in MMA and CrossFit to tone multiple muscle groups. Offer compound, high-intensity moves that require maximum effort from a large number of muscles in your body. Great for men & women to increase speed, accuracy, flexibility, strength & coordination.