The BLX collection of Uni-ball Signo 207 gel ink pens features intriguing dark colors created by infusing black ink with color. The pigment-based ink bonds permanently with paper, resulting in strong colors and document security. It is resistant to chemicals that can wash away dye-based inks, thus preventing check washing (a common method of check fraud). The ink is acid-free, water-resistant, fade-resistant, and of archival quality. You will also enjoy a comfortable writing experience, due to the textured grip.
Dimensions: 5.6 inches length, 0.4 inches diameter (14.1 cm length, 0.4 cm diameter).
I have to disagree with the other reviewer who said this pen looks black or dark
blue. Yes, it is a dark purple, but it is still clearly purple. If I write next
to it with dark blue or black pen, there is a noticeable difference in color.
Next to a pure purple, it is less vibrant, but they are clearly based on the
same color. Aside from that, this pen writes really smoothly, like most 207s.
I LOVE thee pens. Colors are perfect I so enjoy using them. As the other buyer
stated, the colors are authentic when you see them next to other color inks. As
a fan of uni-ball, I also recommend the Power Tank series. They write upside
down and on all surfaces.