The Quickdraw Retractable Tether System from Leupold is a convenient and easy way to keep small electronic devices ready for use, and safe from loss. Designed not to disturb those around you, a 36" yellow heavy duty Kevlar cord extends and retracts on the Whisper Quiet retractor system. When the cord is extended, the tension provides stability to steady your hand. This is useful if you are using a rangefinder to make sure you hit the exact target you're aiming at.*Rangefinder Not Included. Leupold QuickDraw Rangefinder Tether System 114181