Hammer Strength Ground Base® Jammer

The key to the Jammer’s unmatched power transfer lies in its converging and diverging arm path. Unlike rigid, linear pressing arms, this design follows the body’s natural movement patterns, delivering a more athletic, explosive, and functional pressing motion that translates directly to sport and strength performance.

The Jammer’s angled, ergonomic handles provide a natural and powerful grip position, reducing wrist strain and maximising force output. Whether driving through a press or loading up for explosive reps, the handles put the athlete in total control—allowing for optimal leverage and peak performance.

Take your power development to the next level. The built-in band pegs allow athletes to add accommodating resistance, increasing tension through the full range of motion and reinforcing explosive strength at the top of each rep. Perfect for athletes who need speed, power, and controlled force production.