Each Pitt Artist Pen has the size indicated on the pen. You will find this detail on the end of the cap and at the end of the pen barrel.
B = Brush and Big Brush
1 to 5mm and 1 to 8mm.
Available in 60 bold, rich colors plus the new white addition.
SB = Soft Brush
0.5 to 5mm
Available in 11 colors: Dark Indigo, Light Indigo, Cold Grey VI, Warm Grey V, Warm Grey IV, Cold Grey IV, Cold Grey III, Warm Grey III, Cold Grey I, and Warm Grey I.
SC = Soft Chisel
1 to 3mm
Available in Black.
M = Medium
0.7mm
Available in 3 colors: Black, Dark Sepia and Sanguine.
F = Fine
0.5mm
Available in 3 colors: Black, Dark Sepia and Sanguine.
S = Superfine
0.3mm
Available in 8 colors: Phthalo Blue, Orange Glaze, Middle Purple Pink, Magenta, Cobalt Green, May Green, Deep Scarlet Red and Indanthrene Blue.
XS = Extra Superfine
0.1mm
Available in Black.
C = Calligraphy
2.5mm
Available in 14 colors: White, Green Gold, Sanguine, Pink Carmine, Magenta, Indanthrene Blue, War Grey III, Chromium Green Opaque, Raw Umber, Dark Sepia, Walnut Brown, Nougat, Warm Grey IV and Black.
1.5 = Bullet
1.5mm
Available in 8 Colors: Black, White and Metallics - Gold, Silver, Copper, Ruby, Blue and Green.
2.5 = Bullet
2.5mm
Available in White.