... 22.5, 25, 30, 35, 40, 45, 50, and 52.5 pounds. The gradual increase allows the user to build ... dumbbell. The weight ranges are 5lbs(2.27kg) to 52.5lbs(23.8kg). Starting at 5,7.5, 10, ... 35, 40, 45, 50, and 52.5 pounds.The Bowflex SelectTech Dumbells use a unique dialing system to change the ... need is eliminated for owning more then one set of dumbbells.A one-year warranty is offered, any defective items ...