The Petzl Basic is a compact ascender with excellent grip that fits well in the hand for rope ascents. It can be used for rope ascent on a fixed line or as progress capture in a hauling system.

 

The Basic will continue to function well in frozen or muddy conditions due to the toothed cam with self-cleaning slot. The cam is constructed from stainless steel making it corrosion resistant. 

 

The lower attachment hole is large enough to accept carabiners for the lanyard and the foot loop. An upper connection hole guides the rope.