Rear delt machine flyes

Instructions

Sit on the machine, chest against the cushion and adjust the height of the seat so that the handles are at the level of your shoulders.
Grasp the handles in front of you. This is the starting position.
Slowly move the handles outward until they are on the sides.
Hold this position for one second then slowly move the handles back to the starting position. Do not let the weights touch the stack.

Muscles