Archive: Abs machine capable of performing sit-ups and aerobic exercise at the same time, Wonder core 2 appeared. ◆ the three evolution point for the ideal of sit-ups, rowing band system, cardio weight training, it is authentic and comfortable sit-ups than adds easy full range motion. ◆ it is possible to perform training ranging ten With bands, abdominal, back muscles, biceps, can train the like effectively deltoid. adjustment: Since possible to adjust the length of the front portion, it can be used as a perfect abs machine to your body. ● 2-stage load: the person mounting of spring, from beginner to advanced, so can be adjusted in two stages the exercise according to the people who use, it is possible to train effectively abs.