Get a slammin’ workout anywhere with the Slam Ball from COREFX! COREFX Slam Ball is engineered to build explosive strength and mental resilience workout after workout. With an impact-absorbing core, the Slam Ball is suited for beginners to more experienced athletes. It can be used by individuals looking for some light workouts after a long day on the slopes or for more serious athletes seeking some explosive strength training! Slam balls are a form of medicine ball that can be used for athletic training for almost any sport - MMA, football, wrestling, or just general athletic training. Slam Balls can help you enhance your cardiovascular endurance, increase muscle mass and help improve hand-eye coordination. The Slam Ball is perfect for getting rid of excess energy and pent-up frustration.