WPC handles are characterized by a rectangular shape, allowing for the fastening of cables in areas with limited access. The self-locking mechanism of the handle prevents the uncontrolled sliding of wires from the grip. The anchor mounting system allows for easy and quick installation in a drilled hole. WPC handles allow for the use of minimal available space, making them ideal for use in hard-to-reach places. An example of their use is in the installation of distribution frame profiles.