Faber-Castell polychromos artists"set of 24 colour pencils. They contain superior pigments of unsurpassed light-fastness, with extra thick leads (3. 8mm), water resistant and smudgeproof. SV bonding provides high degree of break resistance. Faber-Castell Polychromos Artists Colour Pencils allows you to draw filigree detail with colours involving progression from lightshading to intense colour, thus achieving a very high coverage.