THIS KIT INCLUDES (1) DOUBLE ROPE LOGIC TETHER, (1) ROPE WRENCH, (1) MATCHING PULLEY PICK YOUR COLOR!!!! Rope Wrench: This newest version of the Rope Wrench comes from ISC and is refined with rounded edges, smooth bolts and pins, and the high-end construction you’d expect from ISC. The Singing Tree Rope Wrench is a unique tool for unique climbing arborists.Installed with a stiff tether above a traditional hitch of your choice, the two 90-degree “bends” add just enough friction to the system for a stationary line system to act like a moving or doubled line system. This imparted drag above a cordage friction hitch opens new and exciting possibilities for climbers. Adding the Rope Wrench gives climbers all the advantages of stationary rope work posi-tioning with the safety and feel of more traditional systems. The Rope Wrench accommodates only arborist-grade climb-ing lines (11–13 mm) interacting with spliced, heat-resistant, eye-to-eye Prusik cord (8–10 mm). It requires a micropulley/carabiner attachment to the saddle. A 1:1 climbing system in your future? The Rope Wrench is an excellent choice for safe, efficient stationary rope climbing. WARNING: This product requires experience and possibly train-ing in rope-assisted climbing techniques (specifically SRS as de-scribed above) and tree-related hazard assessment prior to use. Rope Logic's Double Eye Fix Tether: Rope Logic’s new FIX Tether is the perfect fix for your Rope Wrench. Available in either a single eye or double eye , The FIX features a reinforced core, making it more rigid than any other tether on the market. Both versions offer a small loop sewn into the tether for tending. The Fix double eye works great with the pinto style pulley and the double eye works with the hitch climber style pulley.