The medicine ball is a multi-purpose weighted ball that comes in several weights (1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 KG)Suitable for both indoor and outdoor use, this ball will enable you to strengthen your muscles and improve your endurance, strength and coordination. Some exercises are designed to strengthen abs, back, legs, shoulders or arms. Main features of these Medicine Balls:Weighted balls suitable for yoga, pilates, gymnastics, fitness and rehabilitation exercises. Simple black/white design. Material: rubber. Weights of 1, 2, 3, 4 or 5 kg: diameter 23 cm. Weights 6, 7, 8, 9 or 10 kg: diameter 28.6 cm. Develop your muscles (by lifting, throwing or rolling the ball). Strengthens upper body and arms. Non-slip outer surface for excellent grip. Slip- and abrasion-resistant balls.