The Riven 65105 Eclipse Bugle Tube is a premium, lightweight calling system designed to amplify mouth-blown elk calls with realistic resonance. It features a high-tech carbon fiber barrel paired with a durable polycarbonate mouthpiece, a combination that eliminates the plastic tones of standard tubes to mimic a deep, hollow throat sound. Specifically engineered for Rocky Mountain and Roosevelt Elk, this tube creates the ideal backpressure needed to hit high-octave screams and low-end chuckles. Its exceptionally lightweight and rugged construction makes it an essential tool for backcountry hunters looking to project sound over long distances in high-altitude terrain. Safety Note High-volume bugles can attract other hunters or large predators like bears and mountain lions; always maintain 360-degree situational awareness and positively identify your target before firing.