Ascenders

Jumar

Jumar is a simple device which is used instead of the selftightening knot(prusik) to ascend a fixed single rope. It moves when you push or pull it upwards and it blocks if you stop or try to pull it downwards. It is made of a light aluminium alloy. There are jumars with a handhold or without one which are for the waist. Jumar is much more handy than selftightening knots and very fast for rescues. Its only disadvantages are that it lightly damages the seath of the rope and is a bit expensive.

Petzl Tibloc

There are also some types of mini jumars of which the most impressive is the Tibloc of Petzl. It is a very light(39gr) and "smart" device. Because of its small weight you can have it always on you since it is very useful for manoeuvres and rescues.

Petzl Shunt

Shunt is a special device which is used as a brake of the rope when you rappel. It has a mechanism which blocks the rope. When you push a lever it lets the rope free to move upwards or downwards. It can be used on a single or a double rope. It can also be used as an ascender instead of a jumar. Its main advantages are that it doesn't damage the seath of ropes like the jumar does and that it is very handy in case of rescues.

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