Ink Type: Water based acrylic paint. Xylene free ink is light fast and waterproof when dry. 

Tip Style: 1mm bullet tip. Excellent for drawing fine lines and details.

Ideal Uses: Fine line writing and drawing on non porous surfaces such as glass, plastic and chalkboards.  Marks can be removed from non porous surfaces by using ammonia based  window cleaner. Posca Markers can be used to make permanent marks on porous surfaces like wood, plaster, clay and posterboard.