Special Golden Estrus in the bottle. It has been proven to work every place I have used it including different states. I have a daytime dripper that I hang as well as using the dragline making a half circle around my stand at 15 -20 yds. Just like rattling and everything else used for whitetail deer.... some days it works some days it don't depends on the deer and what stage of the rut he is in and how much testosterone he has pumping through him at that time. And more importantly... does he already have his nose on another doe because then all bets are off and he will do the dumbest things at that moment taking chances he never would have prior to the rut.