Pitt Artist Pen Metallic 1.5 India ink pen
blue metallic
Pitt Artist Pen Brush India ink pen
skyblue
Pitt Artist Pen Fineliner S India ink pen
indanthrene blue
phthalo blue
Pitt Artist Pen Soft Brush India ink pen
dark indigo
Ecco Pigment Fineliner
0.1 mm, blue
0.5 mm, blue
ultramarine