Improved Singing Tree Rope Wrench from ISC
For single rope technique (SRT) climbing only.

The Singing Tree Rope Wrench (STRW) creates a “bend” above the climbers hitch on the single line which,

in addition of the tether to connect to the device, creates a “contained doubled rope system” on the single line.

The STRW allows so many more options for safe movement in the tree whist using a single rope.

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.