I use these to draw on skin for tattooing. The ink DOES NOT come off even with alcohol. Which in my case if very good. Different sizes and they all come in their own sanitized case with a ruler in each case
π 5 Diameter Round Brass Rod: Durable and Versatile Metal for Various Projects
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Precision In Lab Work: Heavy Duty, 4.75-Inch General Purpose Forceps With Medium-Curved Tips From Scientific Labwares
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American Carbide Tool Carbide Tipped Threading
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