Sarasa Decoshine gel pens are perfect for use on both dark and light paper. The metallic gel pigment ink is waterbased and acid free as well as water resistant. These pens have a 0.5mm point and retractable tip, so no worries about losing the cap. Each pen has a push clip to allow the pen to be fastened to a journal or notebook. This set of nine colors includes Gold, Silver, Copper, Pink, Red, Orange, Green, Blue and Purple.