The Phelps Thrill Pack brings back three original-recipe elk diaphragms: Elk Season, Played Out, and Commitment. The pack covers a broad range of cow sounds, bugles, calf sounds, and calling volumes.

• Elk Season: ultra-thin latex/tight stretch for high-pitched bugles, young cow, and calf sounds
• Played Out: thin latex/medium stretch for seductive young and mature cow vocalizations plus low-to-medium bugles
• Commitment: medium latex/medium stretch for bugles and cow calls from soft to loud