The first fineliner that can be combined in any way thanks to a clever system. Not only can you connect your favorite colors, but also the different Link-It writing systems (fineliner and fiber tip pen) can be easily snapped together. With the ingenious click system, you can easily connect and disconnect the two pens. The cap-off ink does not dry out, even if the pen is left open for 2-3 days. The rubberized, ergonomic triangular grip is comfortable and non-slip in the hand and can also be conveniently held as a single pen by repositioning the cap. The casing is made from 88% bio-based plastic. Ink color: Lapis Blue.