1 - Set two cable pulleys to about shoulder height and attach single handles, or use the cable ends directly if appropriate.
2 - Stand centered between the pulleys and grab the left handle with your right hand and the right handle with your left hand so the cables cross in front of you.
3 - Step back slightly, stand tall with feet about shoulder-width apart, and keep a soft bend in your knees and elbows.
4 - Brace your core and start with your arms extended in front of your chest, palms facing inward or slightly downward.
5 - Pull the handles out and back in a wide arc until your arms are in line with your shoulders, squeezing your rear shoulders and upper back.
6 - Slowly return the handles to the starting position under control without letting the weight stack slam down.
7 - Repeat for the desired number of repetitions while keeping your torso still and avoiding shrugging your shoulders.