【Product Name】 Notch Rope Runner Pro Tree Care Climbing 【Condition】 After opening, I connected it to a rope and applied a load (static load 65kg, no impact load). I ascended and descended 5 times, but the compatibility with the rope and the balance with my body during work did not suit me, so I stopped using it. 【Product Description】 The "Notch Rope Runner Pro," designed by Notch with the original inventor, Kevin Bingham, is ergonomically improved and features rope-friendly edges. The Notch Rope Runner Pro is the ultimate SRS mechanical device. * Very easy climbing with SRT or DRT * Smooth descent with one hand * Midline attachment possible * Edges that make it easy to pass the rope through * Multiple friction settings possible * Central tending point that can be attached to a chest harness * Improved shielded ball bearing pulley * Designed by Notch and original developer Kevin Bingham * Internal spring ensures safety from dirt and debris * Slick pin keeps all parts together when the device is opened * Super cool gunmetal gray color Usage: SRS (SRT) / MRS (DdRT) Compatible Rope Diameter: 11mm-13mm Weight: 425g Material: Side plates: Aluminum Pins: Stainless steel Working Load: 140kg Brand: Notch Style: Rope Runner PRO Item Weight: 1 pound Product Dimensions: 24.1 x 14.6 x 5.7 cm For advanced users: Extremely dangerous for beginners! ■ Features: The Rope Runner PRO is an evolution of the previous Rope Runner, designed for experts. We recommend using it after mastering the MRS friction hitch and SRS rope wrench developed by Kevin Bingham, the representative of Singing Tree. The biggest features are the ability to attach it in the midline, the double-locking slick pin, the body's overall processing that is gentle on the hands, and the smooth ascent and descent, increasing speed.