Take a seat on the edge of a chair or bench. Hold dumbbells in both hands with your palms facing down. Bend your elbows and rest your forearms on your knees, with your wrists hanging over the ends of your knees. Keeping your palms facing down, curl the dumbbells only using your wrists. Slowly lower the dumbbells back to the starting position. 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.