(1X6) - Pack of Yellow, Red, Orange, Green, Blue, Pink -A classic. On the market since 1972 and still the unchallenged market leader. The classic design has been adapted to current trends. -2 line-widths, with refillable, water-based ink for paper, copy or fax. -Long cap-off time. -The distinctive design stops the pen from rolling away and makes it usable anywhere.