Pick your favorite colors and get them in 3 shades: metallic, glitter and medium point.  Dazzle all your friends with vibrant colors & different ink effects.  Pick a different gelly roll shade to reflect your mood.  Draw, doodle, write notes, journal & trust that it will last as all of the inks are archival, fade resistant, chemical-resistant, water proof, ph neutral & won't blled through most papers.  All pens are available in a variety of other colors separately.