This versatile strength training tool is an easy way to add some variety to your workout routine while helping to build strength and meet your fitness goals. The SPRI medicine workout ball is a multi-use body training tool that can help develop muscular strength, endurance, power, stability, and joint integrity. Medicine balls are ideal for lifting and tossing to work your core. This thick-walled gym ball is designed for durability and to help maintain the life of the weighted exercise ball and retain its shape while the rubber material is made to add air for bouncing. Our fitness ball is designed with a textured basketball-like surface for a more comfortable and secure grip even during the most strenuous workouts - a great addition to your strength training equipment. SPRI medicine balls are great for daily use while keeping up with intense workouts for professional athletes. Whether at your at home gym or in fitness classes, these weight balls for exercise can be used in a variety of exercises. The weighted balls are easy to read with weight stamps for quick identification of weight desired. These medicine balls for exercise are available in 8lb, 10lb, and 12lb. Includes an exercise guide.