Strengthen and define your leg muscles with the Spirit Fitness Leg Curl. The thigh pad adjusts to the front of knees ensuring proper alignment with the machine's axis of rotation, while the lower tibia pad self-adjusts keeping the number of necessary adjustments to a minimum. Plus, all pads use high-density foam with premium upholstery and high-quality stitching, making them not only comfortable, but durable and easy to clean.