Estrotect ID Rings for AI Gun Set of 3 Red, Yellow and Black Estrotect ID Rings for AI Gun are color-coded identification rings designed to fit onto artificial insemination (AI) guns, helping farmers and technicians clearly mark and organize semen straws or insemination protocols during breeding procedures. These rings improve workflow efficiency and minimize errors by allowing quick visual identification of different bulls, breeds, or treatments. Made from durable, flexible plastic, they are easy to apply and remove without damaging the AI gun. Ideal for use in AI programs where precision and identification are key, Estrotect ID Rings help support accurate record-keeping and reproductive management.