... ---------------------The Bowflex SelectTech 1090 Dumbbell adjust from 10 lbs up to 90 lbs in 5 lbs increments (10, 15, 20, 25, 30, 35 ... , 50, 55, 60, 65, 70, 75, 80, 85, and 90 lbs). They replace up to 34 different dumbbells. The Bowflex SelectTech ... from 10lbs(4.5kg) to 90lbs(40.8kg) in 5 lbs increments, replacing several dumbbells in one. Dimensions:17.5"L ...