Now hunters of all skill levels can add diaphragm calls to their elk calling arsenal with Wayne Carlton's Elk Arsenal Tone Trough Diaphragm Elk Call Pack of 4. Every Tone Trough call is made using high-quality Infinity Latex, which is easy to blow and has superior durability to all other types of latex on the market. And because less pressure is required, the life of both the reed and the call is prolonged. Equipped with a Premium Flex frame to ensure consistent fit and stretch from call to call, Tone Trough's sound chamber produces the highest pitched elk bugles and most authentic, nasally cow calls on the market. The Elk Arsenal 4-Pack includes the Single Reed, Cow & Calf (1A 1/2 reeds), Double Reed, and Triple Reed Tone Trough elk diaphragm calls.FeaturesInfinity LatexPremium Flex frame