Allflex EID Only High Performance Single-Use EID Tag Tamperproof design. Excellent for Official Registration and Certification Programs that collect animal performance data. ISO Compliant. Packaged standard with Global Extended Small Male. The EID tag is placed closer to the head of the animal, in a thicker part of the ear. For this reason, a special male tag with an extended shaft is used. Apply with Allflex Universal Total Tagger.