Petzl hand ascenders have been refined to provide greater comfort, efficiency, ease of use. The ergonomically shaped handle is over molded with dual density grip for greater friction and better grip. The grip is wider at the bottom, providing better comfort for your pinkie fingers during use. The index finger indent has also been increased, offering greater efficiency when pulling on the ascender. The cam has been redesigned to minimize friction when sliding the ascender up the rope while the angled teeth provide secure grip in the worst conditions (wet, icy, or muddy ropes). The geometry of the single piece aluminum frame ensures optimal handle orientation when the device is loaded and will maintain solid, comfortable performance for ascents of any length.