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Refillable marker pen, perfect for use our with invisble inks! Solid aluminum construction, o-ring sealed, machined in USA. Supplied with instructions. Ink not included (see above for inks).
IF-PEN ink strongly recomended!
NOTE: Will also work with IFPAP (paper marking inks); IF2 inks that are dye-based (red and blue) are suitable if diluted 50% with acetone, pigment-based inks (yellow, white, green) are not suitable.
Made in USA!