An ear tag is a plastic or metal object used for identification of domestic livestock and other animals.
It is mainly used in livestock tracking and management, such as cows, dogs, pigs and other livestock.
Normally it was installed onto the animals ear by a special animal ear tag pliers.
The electronic ear tag uses non-toxic, no smell, no stimulation and non-polluting plastic material as covering materials effectively prevent against the organic acids, water and salt solution, mineral acid etc.