Our KJ is a true revolution by its performance, its shape, its technology and the way to use it. Developped to hold the most technical type of rope, it features a conical shpae, a release handle that needs to be pulled toward the user, and three jaws that grab the line 360°. Our 5 models of KJ are designed to hold lines between 5 to 32 mm and to handle loads from 0.5 to 10T. KJ: the jammer that won't give up.