Petzl Stop Descender $105.00 D09 STOP Auto-braking descender Designed for long single rope descents in caving. A venerable classic among descenders. When the handle is released, the descender brakes. The descent is controlled by varying your grip on the free end of the rope. The handle is used only to unjam the rope and allow it to slide through the device. Thanks to the safety catch, you can install the rope with ease without having to unclip the descender from the harness. Note: the braking bobbins are replaceable. Specs : For use on single rope from 9 to 12 mm Weight: 326 g Standards :EN 341 classe A.