Illinois River Sonderman 66 Duck Call is a stunning walnut wood duck call with a single reed, developed in 1960 by call maker Al Sonderman. A super #66 duck call, just 5.5" long and is one of the most renowned duck calls made. Produced by the excellent Illinois River Valley Calls, Dave Jackson's 27 years of experience and instrumental manufacturing of successful calls is detriment to his avid duck, goose and deer hunting over that time. With quick judgement and sound ear, the range of calls produced are reliable and on track for your hunting needs Size: One Size