Features:_x000D_ _x000D_ Made of high quality material, no need to worry it will harm to animal. _x000D_ Strong penetration, waterproof, easy to dry and more assured to use. _x000D_ Use special waterproof ink, no fading, long life and convenient to use. _x000D_ Comes with a spare pen head, easy to replace and has longer service life. _x000D_ Lightly press the tip of the pen for the first time and use it when it turns black. _x000D_ Suitable for pig, sheep and cattle, easy to identify the tag on the livestock ears. _x000D_ _x000D_ Specification:_x000D_ Condition: Brand _x000D_ Item Type: Ear Tag Pen_x000D_ Material: Printing Ink_x000D_ _x000D_ Package list:_x000D_ 1 * Pen_x000D_ 1 * Pen Head 1Made of high quality material, no need to worry it will harm to animal 2Strong penetration, waterproof, easy to dry and more assured to use 3Use special waterproof ink, no fading, long life and convenient to use 4Comes with a spare pen head, easy to replace and has longer service life 5Lightly press the tip of the pen for the first time and use it when it turns black