iBayam Fineliners 0.38mm
What We Like
- Fine 0.38 mm tip that holds clean lines through dense color-coded notes
- 18 water-based colors with smooth ink flow at a budget-friendly price
- Minimal bleed on standard notebook paper keeps pages clean
Worth Noting
- Ships with 18 colors, six fewer than the rival 24-color fineliner set
- On very thin paper, ink may bleed through when written with pressure
- Ink Type
- Water-based
- Tip Size
- 0.38 mm
- Color Count
- 18
- Tip Durability
- Minimal tip wear
Read the full review
Precision is the defining trait here: the 0.38 mm tip holds a clean line through dense color-coded pages, and the water-based ink stays crisp on standard notebook paper. Writing flows smoothly from the first stroke, and the 18-color palette covers the shades students reach for when organizing lecture notes. The tip keeps its shape through daily use rather than splaying under steady pressure, which sets this apart from cheaper fineliners. That steady fine line is the deciding factor for anyone building layered color-coded systems instead of quick margin notes.
Students who color-code dense notes, bullet journalers, and planner users get the most from this precision-and-color pairing. On very thin paper — the loose-leaf in cheaper notebooks — ink can bleed through when written with pressure, so the set works best with standard-weight sheets and a lighter hand.
At a budget-friendly price this undercuts comparable fineliners while holding its own on tip quality, making it an easy entry point for students testing out a color-coding habit for the first time. The set reads as a deliberate tool choice rather than a stash of throwaways, which suits the note-taking routines it targets.
Bottom line: Students building color-coded note systems on standard paper will find this set hits the precise balance of tip control and price.