Marvy Le pen micro-fine point pen in multiple colors features acid-free, non-toxic and smudge resistant ink. Extra fine, synthetic point, sleek light-weight barrel is great for sketching, doodling, journaling and more. Slim line pen is superbly balanced to produce beautifully dense black, super fine lines. pen with elongated metal collar to safeguard tip and allow for perfect ruling has tip that retains shape throughout the long life of the pen. Set of 10 pens contains two each of black and blue, one each of red, green, pink, burgundy, teal and lavender.