the TOTAL the CORE - is a revolutionary new trainer,This model is more perfect, as it combines the best qualities of the old simulator, along with more sophisticated materials and design, New materials and lack of resistance springs provide durability trrenazhera, A new way to create resistance to allow you to choose the right level of training intensity, providing maximum comfort during training and bringing pleasure and benefit, unique simulator for the abdominal and back, as it provides a full 360-degree elaborate torso muscles, doing just one simple continuous motion simulator design is designed so that all exercises are performed in a comfortable sitting position