Sit upright on a stable chair with your feet flat on the floor and a pair of dumbbells in hand. Bend your elbows and hold the dumbbells at shoulder-height with your palms facing you and elbows in front of your stomach. Press the dumbbells up toward the ceiling. Lower slowly 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.