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Compact and lightweight self-jamming pulley

3-in-1 multi-purpose device (pulley, self jamming pulley, rope clamp).
* Efficient and compact, aluminum sheave mounted on a self-lubricating bearing.
* Toothed cam with self-cleaning slot: works even on frozen or muddy ropes.
* Cam can be locked in open position so device can be used as a simple pulley.
* Can be used to ascend a rope.

Certification: CE / UIAA

Technical specifications:
Efficiency: 71 %
Working load as pulley only: 2.5 kN x 2 = 5 kN
Breaking strength as pulley only: 10 kN x 2 = 20 kN
Working load as self-jamming pulley: 2.5 kN
Breaking strength as self-jamming pulley: 4 kN
For use with ropes from 8 to 13 mm in diameter
Weight: 165 g