Features a patented resistance mechanism eliminates weight stack, top plate, guide rods, and provides a low profile, consistent appearance among stations. The “Dial in” load adjustments can all be made from the exercise position in as little as one-pound increments. Infinitely adjustable hydraulic seat and backrests ensure proper anatomical alignment. Fully enclosed mechanisms provide an additional measure of safety. The Nautilus weight transfer system is designed to match resistance curve to strength curve on every machine, allowing proper muscle loading throughout the range of motion. Silver frame with black upholstery.