Built to withstand continuous, high-intensity clinical and studio Use with durable vinyl upholstery and dense EVA foam to provide maximum comfort and accurate proprioceptive feedback. High-traction reformer feet provide superior grip with all floor surfaces during high-energy jumpboard or cardio-tramp Rebounder workouts. Made of durable silicon rubber and PVC. Patented Retractable rope System with recoiling rope reels for easy adjustments. Longer ropes add increased range of motion and fluidity to exercises – allowing for more programming options. Carriage glides over sleek C-Channel aluminum rails, using a patented rolling mechanism for a smooth, friction-free ride. Enhanced springs are built to withstand vigorous Use with jumpboards, cardio-tramp rebounders and other reformer accessories and secure quickly and safely.