GRAVITRON 2000AT Chinup/Dip assist - IMPORTED, USED, sold as it is . The Gravitron 2000 upper-body exercise system is a machine designed for performing lift-assisted pull-up, chin-up, and bar dip exercises. The 180 pound weight stack, divided by 10 pound increments, provides a wide range of assistance levels. The exclusive linear tracking mechanism eliminates the joint stress associated with systems that use a pivotal mechanism. Regular use of the Gravitron 2000 upper-body exercise system develops and strengthens the major muscle groups of the upper body, including the: biceps, brachialis, brachioradialis, deltoid, triceps, pectoralis major and minor, latissimus dorsi, rhomboids, teres major, and trapezius. Height 81.0 inches (206 cm) Depth 50.0 inches (127 cm) Width 48.5 inches (123 cm) Shipping Width 27.5 inches (70 cm) Weight 511 pounds (232 kg)