Type
Strength Training
Equipment
Dumbbells
Body Parts
Pecs

Photo credits: Top, James Michelfelder; Step 1, James Michelfelder. 

Step-by-step instructions

1. Lie on the floor with two dumbbells above your shoulders.
2. With palms facing each other, lower the weights in an arching motion until your elbow hits the ground. Then, squeeze the dumbbells back together in an arching motion. That's one rep.