●  The gradually slowing action mode can energize most of the pectorals major muscle, while minimizing the involvement of the anterior deltoid. ●  Two motion arms have limits and adjustable knobs which can be adjusted to different positions for arm muscle group. ●  Energize different pectorals major muscle group by forward and backward bidirectional motions, and transfer the power to the specific muscle directly. ●  Minimize the outward rotation of the arms, thereby reducing the pressure on the shoulder joint. ●  The seat can be adjusted to the user’s desired range of motion when used. Specifications DIM：(L)1680*(W)960*(H)2000mm N.W：192KG Weight stack： Standard：80KG Max：120KG Muscles trained：Pectoralis major muscle