This is a cute asian invention where you hold the little plastic ruler up to the eyelash extensions to measure the natural lash and mark with. your pen/marker where you are/can do the longer lashes.
These are also great to unpackage and include in a little gift-bag for clients or customers who purchase your lash growth serums, so they can track their own growth!
I have found it's better to have a few on hand due to being careful to be sanitary; so not using one ruler on more than one client and when we have a few clients a day, I just toss them into a small cup and sterilize/clean at the end of my shift.
Free shipping for you my lovely things and of course, it's tracked!
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