... in one set of Bowflex 552 Dumbbells2. Adjust in 2.5 lb (1.13 kg) increments (up to the ... up3. This 522 dumbbell can adjust scope :5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5,25, 30, 35, 40, 45, 50 ... ,52.5 LBS4. One of the most space- ... - say goodbye to 30 dumbbells cluttering your workout space.5. Built with cutting-edge technology that lets you rapidly ...