Start seated on a stability ball with a weight in hand and roll your body down by walking your feet forward until the ball meets the tips of your shoulder blades. Keep your head lifted to align neutrally with your spine. Extend the weight over your chest. With straight arms drop the weight down towards the floor over your head. Engage your abs and bring the weight back up over your chest.
We love these adjustable dumbbells from Rep Fitness. They take up very little space and are also very durable compared to other adjustable dumbbells on the market.