The ZK-2 Singing Tree Rope Wrench (STRW) is manufactured and distributed worldwide by ISC. The STRW enables Single Rope Technique (SRT) climbing, minimises slack in the system, ensures consistent friction, allows 1:1 efficiency, allows simple re-directs and can easily be set up on multiple limbs. The ZK-2 model has rounded side plates and pins for minimal rope wear. It is fitted with a pulley wheel, to support the rope radius and minimise rope compression. CE version.
The ZK-2 It is not intended for use as a primary support.
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