With the Tunturi Selector Dumbbell 25kg you are no longer working with separate disks. The dumbbell has a turntable with which you can easily adjust the correct weight. The mechanism then clicks on the weights that you need at that moment. This means you will spend less time changing the disks. The dumbbell has 10 different weights that rise in steps of 2.5 kg. The weight varies from 2.5 to 25 kg. This allows the dumbbell to be used with every exercise.