From the Manufacturer:
Pigma Micron pens are ideal for creating precise lines. They're universally used by designers, illustrators, manga/cartoon artists, scrapbookers, hobbyists, and even scientists.
Pigma Brush pens have a soft brush tip for creating variable line widths. Applications include illustration, calligraphy, freehand graphics, craft art, handwritten awards and certificates, and text embellishment.
Pigma Graphic pens have specialized bullet and chisel nibs for bold applications, including graphic artwork, manga/cartoon illustration, craft art, tole painting, mapping, and sketching.
Set of 3, Multi, Plastic Nib - Contains one each of Size PN (0.4-0.5mm) Red, Blue, and Black.
Set of 6, Multi, Plastic Nib - Contains one each of Size PN (0.4-0.5mm) Black, Red, Blue/Black, Sepia, Rose, and Purple
Set of 8, Multi, Plastic Nib - Contains one each of Size PN (0.4-0.5mm) Black, Sepia, Blue/Black, Blue, Red, Burgundy, Rose, and Purple
Set of 4, Black and Sepia, Extra Fine Sizes - Contains one each of Size 003 (.15 mm) Black and Sepia; and one each of Size 005 (.20 mm) Black and Sepia.
Set of 6, Black, Extra Fine and Fine Sizes - Includes one each of sizes 005 (.20 mm), 01 (.25 mm), 02 (.30 mm), 03 (.35 mm), 05 (.45 mm), and 08 (.50 mm).
Set of 10, Black, Fine and Bold Sizes - Includes one each Pigma Micron in sizes 003 (0.15 mm), 005 (0.20 mm), 01 (0.25 mm), 02 (0.30 mm), 03 (0.35 mm), 05 (0.45 mm), 08 (0.50 mm), 10 (0.60 mm), 12 (0.70 mm), and one Pigma PN (0.45 mm). Black ink.
Set of 8, Light Cool and Cool Gray, Brush and Micron - Includes one each of 01, 05, 10, and Brush tip in both Light Cool Gray and Cool Gray.
Set of 10, Grays and Black, Fine and Bold Sizes - Includes pens in size 01 (.25 mm), 05 (.45 mm), 08 (.50 mm) and 10 (.60 mm) in Light Cool Gray and Cool Gray, and one each of 05 (.45 mm) and 10 (.60 mm) in Black.
Set of 3, Light Cool Gray, Fine and Bold Sizes - Includes one each of 01 (.25 mm), 05 (.45 mm), and 10 (.60 mm) in Light Cool Gray.
Set of 3, Cool Gray, Fine and Bold Sizes - Includes one each of 01 (.25 mm), 05 (.45 mm), and 10 (.60 mm) in Cool Gray.
Set of 4, Sepia, Assorted Sizes - Includes one each of sizes 01 (0.25 mm), 05 (0.35 mm), and Pigma Graphic, and Brush Tip.