The Stabilo Point 88 fineliner uses water-based ink and writes a fine 0.4mm line. This fineliner doesn't dry out quickly due to the long "cap-off time" and it's suitable for use with rulers and templates. This fineliner is ideal for rulers and templates thanks to its metal-encased tip. The metal tip ensures good longevity. The fine writer does not dry out quickly and has a long service life.