Caran d'Ache Luminance 6901 Coloured Pencil Risk a failure mode that's otherwise

a failure mode that's otherwise invisible until you try to sharpen it and the tip keeps breaking off

which means lines drawn with it can be painted over with a water brush or water-based marker afterward without bleeding or lifting into the new color

Dilutable with distilled water for gray tonal washes

That makes it a good fit for filling out multi-part carbon forms or anywhere a darker

freight trains and all the great Finnish graffiti you can ask for

Caran d'Ache Luminance 6901 Coloured Pencil Risk a failure mode that's otherwiseCaran d'Ache Luminance is a wax based colored pencil built around two main strengths: a high concentration of pure pigment for deep, even coverage, and a strong lightfastness rating, meaning the colors resist fading over time even under direct light. About 80% of the 100 available shades fall into the LFI lightfastness category, rated to resist fading for up to 100 years relevant for any piece meant to be framed, displayed, or sold as a finished work