Proudly named after the late master call maker Al Sonderman. The 66 is now available in Max 5 camo. The 66 is one of the most famous duck calls ever built in the history of water fowling. This is a very easy to use call with great tone and volume and very easy to chatter. The shell and bell is made of American Walnutpictured. and cedar tonal parts. Max 5 patterns will vary from call.