The I-57 Canada Goose Call from Kraig's Custom Calls bocote black insert ... This call has been in the works for nearly two years. I sent calls to Canada, Idaho, and 2 to Illinois for hunters to try and give me feedback. It has been amazing to have these experienced hunters provide such high level of compliments: Easiest goose call to blow that they've ever used. Doesn't take large volumes of air to imitate the vocals of Canada geese. Fantastic sound. Definitely will be on the lanyard. The gentleman in the video had just been shown the call....