With its extra-fine calibrated metal tip, the PC-1MR has all the qualities of an ink marker in pen form! Designed for amateurs and professionals seeking a dense, ultra-fine line. Designed for amateurs and professionals seeking a dense, ultra-fine line. 65172 - Precise. 65173 - Its calibrated tip produces a clear, regular, and refined line. 65174 - Consistent. 65175 - The line doesn't vary, and the effect is always perfect. 65176 - Original. 65177 - The marker combines perfect lines with the qualities of POSCA ink. 65178 - Convenient. 65179 - The cap fits onto the end of the marker when in use, like a pen. 6517a - Multipurpose on any surface (glass, metal, wood, plastic, paper, etc.)