The Constellation Series of glass dip pens are very fashionable, showing personality and being loved by young people, especially students. Each pen is an elegant writing instrument. There is a small planet of different colors. when you hold the pen, you are holding a small universe in your hand. It's the best birthday gift ideas according to the constellations. GlassDipPen.com provide 12 Constellations of glass dip pens and accessories for all calligrapher enthusiast.