the third arm for via ferrata makes climbing safer. in steep sections where the ferrata wire leads upwards this additional tool acts as a brake, only allowing upward movement. should the climber fall, ferrata.bloc will lock directly at the point of contact with the wire. it thus helps avoiding long falls back to the last fixation of the wire. comes with in-webbing brake.
FERRATA.BLOC is an additional tool to be used together with the original via ferrata.set and does not replace it!
please read the manual!