The SciFit PRO1 Upper Body Exerciser is a highly adjustable upper body exerciser that can be used either seated or standing. Both the head unit and the arm cranks are adjustable. The head can be tilted for users of all heights and the arm cranks have four range of motion settings. Arm cranks move in unison and can move either forwards or backwards. Resistance starts low for proper build up when exercising. The standard seat is removable for wheelchair access and has a fixed height that can adjust either forwards or backwards. The user weight capacity for the standard seat is 500 lbs. Mast is 6" taller wheelchair platform included.