【HIGH-QUALITY AND DURABLE】 Wall ball/medicine ball constructed of high-quality durable vinyl, double stitched with reinforced seams. Nylon inner construction. The skin-friendly material makes the surface feel comfortable and soft. 【BOOST AEROBIC CAPACITY】 This is an essential fitness equipment. It can strength muscle mass, increase your endurance ,burn excess fat and improve body balance. 【MULTI - USES】 Whether its wall ball routines, squats, sit-ups, or any other core building exercise, the wall ball is the perfect accessory to optimize your workouts. The unique design of the wall ball is to meet the fitness diversity. 【FULL BODY WORKOUT】 Slam wall balls challenge main muscle groups as well as smaller, stabilizing ones. Adding these heavy balls to aerobic activity, weight training, or exercise classes ensures a full-body workout from head-to-toe. 【EASY TO GRIP SURFACE】 PVC+Rubber Particles+PP cotton. Special construction makes it very easy to hold.Powertiger medicine ball features a precision nylon thread seam construction with a moisture and scuff-resistant. We started by making sure all seams are double stitched, the interior filling is substantial enough to help the ball keep its shape across repeated use, but also forgiving and flexible enough for athletes to safely stop or catch the ball at high velocity.  Medicine ball training is one of the easier ways to improve your endurance, explosiveness, and core strength. Use them for anything from wall ball throws to traditional trunk twists, squats, sit-ups, presses.