This Wildlife Research CenterA(R) #1 Select EstrusA(R) Deer Attractant is a must-have during the rut. Its special blend of musk and doe urine with estrus secretions trigger the sexual attraction instinct of whitetail bucks to get them running in for action. Doe urine with estrus secretions and a touch of musk Very effective during the rut Your choice of 4-oz. bottle or 1-oz. bottle with 2 Key-Wicks Order today!