- Kilograms printed on the side of the ball - Easy to identify when working out - Air valve on ball to increase density - There is no bounce to the slam ball as it is classified as a dead ball - Very durable latex high density cover - Ideal for variety of cardio, cross fit and strength building exercises Perfect for core fitness, endurance, co-ordination, flexibility and cross fit training You can tone and build muscle and improve your reflexes and hand eye coordination. Great for group sessions, circuits and extreme workouts. Slam Balls are a great way to exercise any area of your body, whether upper, lower, or core. Benefits of Slam Balls: They allow for improved range of motion Core strength Coordination Flexibility Joint integrity Upper and lower body strength Workout with a partner or on your own Note: Slam balls should never be slammed on the valve (air inlet) side of the ball, this can be achieved by holding the ball valve side up and slamming the ball down. Working out with your new top quality Slam Balls will have you feeling fitter, faster, stronger. Purchase yours today and start your working towards fitness goals.