Stand with feet hip-width apart, holding dumbbells at your side with your palms facing each other. Bend your elbows and squeeze the biceps to curl the weights towards the shoulders. Make sure your elbows stay at your sides and your body does not move. Slowly lower the weights and repeat.
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.