This product builds strength in the latissimus dorsi and arm muscles. The exercise is performed along a guided trajectory and involves pulling the arms downwards. Resistance is provided by a weight stack which enables the workload to be adjusted to suit each type of user. Pivoting flex handles reduce wrist stress and help prevent injury; Biomechanically correct diverging motion; Gas-assisted seat adjustment and adjustable thigh pads accommodate users of different sizes; 2:1 ratio (1 hand) and 1:1 ratio (2 hands); Cold rolled steel weight stacks with noise dampening; Stainless steel guide rods resist rust and stay smooth; Kevlar belts for quiet, smooth action and optimal tensile strength; belt contains 2200 lb (998 kg) tensile strength aircraft cables; Marine-grade double stitched upholstery.