Pre-Owned Nautilus 2ST Selectorized Rotary Torso2ST Technology: The unique 2ST (Second Generation) technology adjusts the resistance curve to match the user's strength profile throughout each exercise's range of motion, ensuring that muscles are engaged optimally at every point. This results in increased muscle recruitment and improved strength gains. Ergonomic Design: Each machine is designed for comfort, ensuring a smooth, natural range of motion. The padding, angles, and adjustments help prevent