Our hot stamp foil dye, made exclusively for Y-TEX tags, ensures deep penetration into the tag, yielding longer number life. The Y-TEX Tag Ink pen also works with a deep penetrating formulation that stands up to the environment and time. The Tag Ink pen is available in black ink and comes with both broad and fine tips. Y-TEX ball tip markers(bottle) come with either black or white ink. Y-TEX tags marked with the Y-TEX Tag Ink are guaranteed legible for 4 years.