The Sport 2.4 equals/replaces 8 pairs of dumbbells of 216 lbs or free weights.. Weight range is 3 lbs - 24 lbs per hand in 3 lb increments. Increments acheived are: 3, 5, 9, 12, 15, 18, 21, and 24 lbs per hand. The Sports 2.4 cannot be further expanded.