PST HMS are slam balls designed for intense workouts that involve dynamic floor impact. The carefully selected outer material and the sand inside ensure that the ball does not bounce. Slam training effectively activates the entire movement system. This type of training is beneficial in any sport that requires speed and high muscle strength from the athlete, making it an ideal choice for martial artists.

The ball is highly durable and waterproof, featuring special tabs that extend across the entire surface to prevent slipping from the hands. This design provides great comfort during training and enhances the precision of movements.

In addition to slam training, the balls are also excellent for warm-up exercises and body strengthening. PST HMS balls are available in weights ranging from 2 to 30 kg.