The essential elk hunting 4-pack features a comprehensive set of calls, including the Premium Flex single reed, Double Reed, Triple Reed, and 2.5 Reed, all conveniently housed in a Diaphragm Stack Case. Each call is crafted using the Premium Flex process, which involves stretching the latex in a precise 180-degree arc and locking it into place to ensure optimal sound and fit. Constructed with ultra-durable Infinity Latex, these calls offer enhanced longevity and deliver superior sound quality and consistency, making them an indispensable tool for any elk hunting enthusiast. Flex premium Infinity latex Designated species ELK Set of 4 units