Matrix Magnum Ab Crunch BenchMatrix Magnum Ab Crunch Bench The Matrix Magnum Ab Crunch Bench is a commercial grade plate loaded abdominal machine engineered to deliver a biomechanically correct, natural crunch movement for effective core training. Part of the Matrix Magnum Series, this high performance strength unit is designed for professional gyms, strength facilities, rehabilitation centers, and athletic training environments that demand durability, precision, and user