The Hammer Strength Back Extension is a great workout for your back muscles providing the best and most reliable manufacture Hammer Strength. Hammer Strength is the #1 brand of plate-loaded equipment in the world and offers some of the industry’s most advanced strength-training technologies. With the revolutionary vision and guidance of founder Gary Jones, Hammer Strength became the first to explore the ergonomic advantages of utilizing converging and diverging arcs of motion. Now, Hammer Strength boasts more than 80 innovative products – more strength-training variety than anyone else. Hammer Strength gives you the power to build champions at any level.