Designed for use in climbing fixed single ropes sized from 8 to 13 mm, the Petzl Ascension Ascender is available in right- or left-hand versions. It is lightweight, at only 195 grams, yet it is strong and durable.
The ergonomically shaped handle is molded over with rubber to provide a more secure and stable, as well as a more comfortable, hold. Its broad surface, which is broader at the bottom, also contributes to comfort when climbing with the ascender. The index finger indent has been enlarged to increase efficiency.
The chrome-plated steel cam that is spring loaded includes angled teeth to secure the rope even in muddy, icy, or wet conditions. This is made possible because of the self-cleaning slot against which the rope is pressed. It has been designed to glide more smoothly over the rope with less effort making ascending easier and quicker. The wear area has been lowered on the surface of the cam thus increasing its durability.
In order to eliminate the possibility of opening the cam when in use, the trigger mechanism opening and shutting it is recessed. In spite of this, it can still be opened or closed with a single hand. A safety mechanism, however, is incorporated to prevent excessive opening of the cam and a full release of the rope.
The Ascension is of aluminum mono-frame construction which eliminates weak points and contributes to its durability. It is anodized and color-coded, black for left-handed ascenders and gray for the right-handed.
On the frame are several attachment points. These could be used for hauling, back-up or self-belay. At the bottom is a secondary hole which can be used for attaching aiders and slings.