LOOKING FOR ANOTHER KOH I NOOR PRODUCT?. Artist Drawing Square Block C arre Crayon Koh-I-Noor Art Chalk Graphite Sepia Charcoal. White chalk blocks 4391, code: 4391018001KS, EAN: 8593539170891. Black drawing lead blocks 4355 1 soft, code: 4355001001KS, EAN: 8593539170914.