STAEDTLER LUMOcolor Fiber pens, non-permanent red, 10 pens/pk gives you the versatility of a high quality FINE POINT 0.4mm TIP. Used for plotting with the Graphtec FIBER TIP PEN HOLDER (PHP-31-FIBER) for less waste and more savings in your production! \n\nFor use in the Graphtec PHP31-FIBER.\n\nCompatible Models# FC, FCX, CE Series