Tom Krause’s Lure - 40 Below - Long Distance Call Powerful castor based lure formulated for mild to extreme cold and windy weather. Very persistent alluring odor, will never freeze. Tom developed 40 Below for martens in the forest, then discovered how well it drew weasels, fisher, fox, bobcat, and even mink.
Currently out of stock, for an alternate, consider Barnes Beaver lure, tho designed for beaver has that same powerful castoreum penetrating composition.