H.S. Strut Premium Flex 4 Diaphragm Turkey Call Combo Pack -The H.S. Strut Ultimate Starter Diaphragm Calls are made of Premium Flex with Infinity Latex, which requires less air pressure to run, producing more realistic sounds. Premium Flex is a superior diaphragm frame assembly created by Hunters Specialties. Mouth calls made with this patented frame are more comfortable to use and retain their shape and perfect calling pitch. This combo includes Li'L Strut, Smokin' Gun, Sickle Cutter and Triple Trauma Premium Flex diaphragm calls with Infinity Lates. Deadly effective turkey call set for experienced turkey huntersCombines Li'l Strut, Sickle Cutter, Triple Trauma , and Smokin' Gun mouth callsPremium Flex frame - comfortable to use, retains shape for consistent performancenfinity Latex reeds - requires less air pressure for more realistic soundMoisture resistant for longer lifeModel 5930