Breeding indicators are now better than ever with patent pending Breeding Bullseye technology ultra effective at identifying cows that are in heat while providing pinpoint timing for breeding protocols. Tell you with precision exactly when the animal should be bred to achieve optimal pregnancy results. When cows experience mounting activity, the silver and black surface ink is rubbed off via friction to reveal the indicator color of your choice. Once more of the fluorescent indicator is visible, the animal is in standing heat and breeding protocol should be initiated. Third party research has shown that when the Breeding Bullseye or equivalent surface area is rubbed off, confirmed pregnancy rates can increase by up to 3 times!