Set-up: Gently fix your feet into a decline bench and lie on your back with a pair of dumbbells. Make sure you can handle the dumbbells easily and use a spotter if necessary to help you get in and out of position.
Lift: Start the movement with arms straight out and the dumbbells over your chest. Lower your arms with the elbows slightly bent, until the upper arm is parallel to your back. Bring your arms back together above your chest.