The Petzl ID is a highly efficient and user-friendly descender designed for height and rope access. The AUTO LOCK system allows users the ability to position themselves without having to manipulate the handle. The I'D features an ergonomic handle allows comfortable descent control: simply pull the handle while keeping hold of the rope, controlling the running of the rope by varying the grip on the free end - as soon as the handle is released, it locks. A stainless steel wear plate reinforces rope friction zone for greater durability.