These surgical skin markers are routinely used in human cosmetic surgery. The special ink allows for ready identification of anatomical landmarks to be done before surgery. The markers come sterile and each has its own flexible metric and inches ruler. Color works on all ranges of pigmented skin. For best results, remove oil from the skin using alcohol before marking.
Revision date indicates the date the MSDS or SDS was last revised. MSDS / SDS are
dated when they are originally issued AND when any significant change has been made
to the chemical compound or research has revealed a health or physical hazard different
from what was originally stated.