Nautilus Impact Abdominal. Like New Condition!!!Proven. Smart. Effective.The Impact® Strength line brings many subtle innovations to the power of your next weight training workout. It is the evolution of the proven biomechanics and user features that have made the strength line a solid, competitive product. This line retains all the unique, proven, individual design features that customers have stated are ideal such as pre-stretch, start assist, range of motion selection and graduated & standard heavy weight stacks. Impact Strength incorporates new aesthetics and biomechanics features that have established its position as a competitive and diverse strength product line.Nautilus Impact Abdominal Features:User-friendly weight stack selection5 lb incremental weight system for optimal progressionRatcheting seat adjustmentRounded lumbar extension padGravity assisted positioningFeaturing the patented Lock N Load® weight selection system