『Sturdy Rubber Construction』Both of ball shell and bladder are made of high quality and eco-friendly rubber material, ensures the medicine ball is sturdy and durable. You can work a lot of body parts with this ball, get the heart rate up and build strength 『12 Pounds Weighted』The 12-pound medicine ball for full body various exercises; The ball doesn't bounce and can hit a concrete floor from full extension without causing any damage at all 『Durable and Non-slip Surface』This 12# exercise ball featured with textured basketball-like surface to offer more comfortable and easier grip during the workout, enjoy your full body workout and it can make you feel the burn 『Versatile Use & Fun』Excellent body training tool to help develop your muscular strength, core strength, endurance, balance, stability, improve coordination and joint integrity as it forces you to use different muscles to control it. 『Portable & Workout Free』This small exercise ball is great for resistance exercises. Ideal for home, gym or outdoor use; Perfect for classic medicine ball workout, building body muscular, strength training, balance training and plyometrics training in daily life. Easy to take it to anywhere and not subject to the restrictions of the venue, time etc. Feel free to contact us if you have any problems