The sleek Aurora Ipsilon has been with Colorado Pen since our beginning. There is a good reason – it is a consistent best seller, year after year. Since 1930, Aurora has made subtle changes to the Ipsilon, offering new finishes and trim packages. But the basic design has remained the same. Recently, Aurora added a forest green model to complement the red, and yellow fountain pens, rollerballs and ballpoints. The ballpoint is a rare 'one finger' pushdown for deployment and can be filled with any Parker-Style refill in more than ten colors and several ink choices. Fountain pens feature a steel nib plated with gold to match the pen's trim.