Start by laying back on a stability ball so you are balanced on your neck and shoulders. Keep your body straight, abs tight, and feet flat on the floor.
Start with one hand on your side, the other hand will be straight up in the air, palm facing away.
How to Do:
1. Bend at your elbow and let the dumbbell comes across you body so it almost hits your opposite arm or shoulder.
2. Bring the dumbbell back up to the starting position and repeat for repetitions.