Elastic Band Bilateral Horizontal Abduction
This guy is smiling and you will be too when people comment on how strong your arms are looking. Use an elastic band to strengthen those arms and even get your chest stronger.
Start with the band out in front of you with your arms stretched out in front, keeping your elbow straight with tension on the band. Pull the band apart by spreading your arms to the side, again trying to keep the elbows straight and opening up your chest. Repeat as many times as you can in 30 seconds.