The kernmantle Sterling TriTech is our favorite rope for a positioning lanyard 2 Notch Oval carabiners and a Notch Rook The Rook lanyard can attach back onto itself much like the CE Lanyard but with a twist...no, without a twist! The Rook swivels! Diameter - 7/16-inch (11mm) Length - 20 ft. Add a Prusik with thimble or just a loop knot and rotate any direction you want—a stationary rope technique is now at your fingertips, expanding your lanyard’s reach and function