Manuscript callicreative duotip markers come with a 3mm italic chisel nib at one end and a 0.83 Mm fine line nib at the other end. Create thick and thin strokes. Colors are yellow, pink, orange, red, burgundy, pink, mauve, lavender, purple, light blue, blue, turquoise, light green, green, olive, light brown, brown, gray, charcoal, and black. 20 Pc.