I developed this Long Distance Call lure after struggling to find a trapping lure that would hold up to extreme weather conditions on my northern Maine trap line and continue to call in furbearers to my sets day after day. This lure has a unique grease base which makes it freeze proof and allows it to hold up to heavy rain. The lure screams skunk as soon as you open the bottle (it's STRONG!), but there's much more than just skunk essence to this lure. Beaver castoreum, anise oil, tonquin musk, muscaro, civet musk and ambrette compliment the strong odor, add appeal, and continue working when the volatile skunk smell starts to die down. This is my best selling lure and has helped trappers catch a pile of fur over the years!