KOH-I-NOOR COLOURED MAGIC PENCILS. KOH-I-NOOR SPECIAL MULTICOLOURED LEAD PENCILS ARE UNIQUE TO KOH-I-NOOR REGARDED AS BEING OF THE HIGHEST QUALITY. KOH-I-NOOR HARDTMUTH a.s. is one of the world leaders in the production and distribution of first-rate stationery for artists, schools and offices.