Estrotect Breeding Indicators are tool for detecting standing heat. Indicators are placed halfway between the hip and tail head. As mounting activity occurs, the Estrotect Breeding Indicator's silver and black surface ink is rubbed off by the friction of the mounting to reveal the indicator color. Once the black Breeding Bullseye is rubbed off, or the equivalent surface area, this indicates the animal is in standing heat and the breeding protocol should be initiated.
