The U 90 Stage I replaces16 pairs of dumbbells in the space of 1 pair. The U 90 Stage I has a weight range of 5-50 lbs per hand and offers these increments: 2.5, 5, 7.5, 10, 15, 17.5, 20, 25, 27.5, 30, 35, 37.5,40, 45, 47.5 and 50 lbs per hand..
The U 90 Stage I replaces16 pairs of dumbbells in the space of 1 pair. The U 90 Stage I has a weight range of 5-50 lbs per hand and offers these increments: 2.5, 5, 7.5, 10, 15, 17.5, 20, 25, 27.5, 30, 35, 37.5,40, 45, 47.5 and 50 lbs per hand..