1, commercial functional trainer 2, dual adjustable pulley 3, heavy duty 4, optional swivel for T bar rowing ... for correctly performing each exercise.Full Shrouds and Pulley CoversFull shrouds and pulley covers make the equipment more approachable, less intimidating ... welds and aircraft cables give MG Series its uncompromised durability. Dual Adjustable Pulley Functional Trainer Fitness Euipment