Bulldog Gear - Slam BallBulldog Gear Slam Balls are designed for slamming from above your head into the ground this low cost slam ball is a great conditioning tool that gives great bang for the buck; for use at home or at the gym. The concept of the slam ball is simple. You pick the ball above your head, then launch it into the floor. It's soft and absorbent, so won't bounce back up. It's an intense workout for the entire body, especially working the core if you throw it