CD/DVD Permanent Marker-Set red/blue/black Permanent Marker for letterning on the top surface of Cd´s, DVD´s, SmartMedia and CompactFlash-memory-cards. Special ink, Soft round tip, which does not cause damage to the data storage layer. Features Set/red/blue/black 1mm round tip nontoxic Principal uses CDs DVDs SmartMedia CompactFlash-Memory-Cards