Crafted using state-of-the art injection molding technology, Zink Calls Thunder Ridge Series guarantees you'll find the same quality and consistency not only in every friction call, but in every note. Whether at 150 yds. or 15', this innovative call provides a fantastic range of sound, with one common denominator - it drives gobblers wild! The Thunder Ridge Series includes a two-piece hardwood striker and a specific conditioning pad. It also sports the popular E-Z Gripper ring and built-in striker conditioning pocket, as well as a copy of the Turkey Time University instructional DVD.