CinchLok Technology
The latest Timber Duck Calls from Iverson combine the craftsmanship of the traditional wood Iverson Duck Calls with CinchLok(TM) Technology designed to produce a more durable duck call with the same Iverson sound quality.
Easy-to-Use Threaded Locking Feature
Properly seated, this new and unique patent pending feature provides a secure fit and ensures the sound board won’t be lost in the field. The caller also gains more hand access in manipulating back pressure for controlling both sound tone and volume.

High-Density Cast Acrylic for Maximum Durability and Enduring Sound Quality
Traditionally, Iverson wood duck calls are made from the hardest woods available such as African Blackwood, Ebony, Rosewood, or Ironwood. These hard woods provide the best and longest lasting quality sound with minimal maintenance, which has made Iverson wood calls so popular for generations. Great care was taken in selecting, drying and treating Iverson wood calls to ensure that Iverson quality sound.
Iverson took great care in material selection and the manufacturing technique for the new Iverson CinchLok Duck Calls. The density of hardwood duck calls were carefully matched with high-density cast acrylic materials to be consistent with Iverson wooden duck calls. Through this process we have ensured the same traditional unique Iverson sound will last for years.
Engineered for Quality
Each part of Iverson's CinchLok Calls are designed for high-tolerance manufacturing to ensure ease-of-use, reliability, and quality sound that is expected of Iverson Calls.

CNC Machined for Quality/Finish
Iverson CinchLok Duck Calls are manufactured using computer numeric controlled machining to produce exact and consistent sound. The calls are shipped with hand-crafted reeds for high-end, fine-tuned sound quality.