Shipping Included The medicine ball is a great tool for a complete body workout. It can be used to strengthen shoulders, back, arms and legs as well as improving core trunk strength and joint integrity. It also makes an exceptional abdominal exercise tool to create powerful and rock hard abs. Unlike weight machines that are bolted to the floor and give a limited unnatural movement, medicine ball workouts provide weight-resistance through a full range of motion. The medicine ball is a unique tool to learn and train sports specific and explosive motion exercises, therefore the medicine ball is used by many professional athletes, boxers, golf and tennis players and sports associations including the NBA, NFL and NHL. Use these medicine balls for building coordination, strength, and stamina. Bounce-throw, bounce-stretch, bounce-twist, workout alone or with a partner, the options are limitless. Available in three different weights. Workout manual included with every ball! 90 Day Limited Warranty