ELI Labstamp® (Early Life Identification) is the first fully automated animal identification system for research mice between 14 and 21 days old. The ELI Labstamp® provides a consistent, accurate and permanent ID that can be clearly read by technicians and scientist alike without additional training. The system provides the ability to identify young mice using alpha or numeric characters or a combination of both. There are two styles of ink, black and UV green.