The success of the Cool Blue pen line is due to its blue color with many shades. Actually, the pen is made of lacquered steel, but what makes the blue on the pen body have such a beautiful range of colors is thanks to the arrangement of winding lines. Those lines interact with the light and the surrounding scenery, you will see the color of the pen model ranging from dark blue to fresh blue.
This design is quite suitable for you to use as a gift for people of the Water element. This is also a color that is sought after by many pen lovers. The pen version you are seeing is a water-based ballpoint pen, which can also use a ballpoint refill as a replacement.
