The KLUK Custom Calls The Drifter Diaphragm Elk Call is a dome-framed elk call built to mimic that wandering satellite bull that just won't quit. Made with a single .004" red reed, it delivers a crisp, higher-pitched tone perfect for throwing challenge bugles, excited glunks, and estrus whines that push dominant bulls over the edge. Sounds like the intruder he can't ignore- and make him come claim his throne. FeaturesSingle reed design.004" reedCrisp and high-pitch tone