... 3-10(MS) Chip:read-only/read-write RFID tag weight:various opterating temperature:-40 to 85 degrees celsius ... size animals, fix ear buckle. Appliacation area: sign large or medium size livestocks or animals, such as pig,cow,lamb,horse ... for animals and livestocks. RFID animal ear tags and glass tags and bolus are specially designed for the animals, livestockssuch as cow, sheep, pig... Animal Ear tag