... ;With just the turn of a dial, you can automatically change your resistance on each dumbbell from 5 pounds all the way up to ... 90 pounds of weight; It adjusts in 2.5-pound increments (up to 25 pounds), enabling you to gradually ... Settings in pounds: 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 30, 35, 40, 45, 50, ...90pounds;3) Lets you rapidly switch from ...