DESCRIPTION :

Petzl Simple Descender D04

Very easy to use: the rate of descent is controlled by varying the grip on the free end of the rope
Design makes it good for descending tight passages
Spring clip allows the rope to be inserted without removing the device from the harness
Specifications

Material(s): aluminum bobbins, replaceable if worn out
Weight: 240 g
Rope compatibility: For use with single ropes between 9 and 12 mm in diameter