Medicine ball-unbreakable sturdy rubber and non-slip texture for core strength and balance training (8 Lbs) This medicine ball is intended for toning your core muscle like thigh, upper arm, abdominal, obliques, shoulder and . Meanwhile, it helped your strength training and mobility of your daily workout. HIGH RUBBER CONTENT makes it more sturdy and durable. Unique technology keeps the color stay new! 5,000 TIMES NON-BREAKABLE DROPPING TEST from 4-meter high machine insured its non-breakable feature. Suitable for the latest training of medicine ball. SPECIAL DESIGNED NON-SLIP SURFACE-diamond cut and marble textures imitate the common point of the natural anti-slip object. Even when you sweat, you can easily grip the ball and control it firmly. 90 DAYS WARRANTY- any break problem can get fully replace with a new ball!