With two tips (brush tip + fine tip) for maximum creativity. Water-based colors for handlettering, watercoloring and illustrations. 4 different sets of 18 available.Brush Pen with two tips. The fine tip (line thickness: approx. 0.8 mm) is mainly used, when drawing exact lines. The second tip is a flexible brush tip. Its line thickness varies according to the pressure applied to up to approx. 10 mm. Available in 107 vivid colors + blender. Water-based colors can be mixed together and used as watercolors. Perfect for handlettering, aquarell, illustrations, stamping / card crafting, drawing comic / manga, journaling and much more. These pens are acid-free, non-toxic and odourless. Colors are not light-resistant.ABT-18P-2 Secondary Colors: 1x ABT-090,-126, -243, -452, -493, -533, -623, -673, -723, -725, -873, -885, -912, -946, -990, -991, -992, -N15 Features Light-resistant ink No Non-toxic Yes Odorless Yes Ink type Water-based ink Tip 2 width 1 cm Tip width 0.8 mm Twin tip Yes Tip type Bu