1) Bend forward slightly and stand on the resistance band tube with feet close together, holding the handles by your sides. Keep your upper arms parallel to the floor while your lower arms remain perpendicular to it.

2) Bend your arms in a 90 degree angle as you extend your arms back, keeping your elbows tucked to your sides. 

3) Hold in the outer position for 1-2 seconds and repeat for your desired rep range.