Sit on a decline bench and place a pair of dumbbells on your legs. Throw them up using your legs and lie on the bench while holding the dumbbells over your shoulders.
2. Flex your abs and keep your head, shoulders and butt in contact with the bench.
3. Slowly lower the dumbbells by bending your elbows while keeping them at a 45 degree angle from your torso.
4. Pause briefly at the bottom and extend your elbows back to the starting position.