Included in this pack are six different gel - fluro coloured pens! Pink, orange, blue, green, purple and yellow — watch the colour change as you draw. You will always have six different coloured pens, as the rainbow order is all different! The Tiger Tribe Rainbow Gel Pens have gel ink that is acid-free and resists fading, making them perfect for arts and crafts, school projects and scrapbooking. Or pair them up with one of the awesome tiger tribe kits! Rainbow Gel Pens are non-toxic and water-soluble.