Brush Pens all colours are made with high quality points that work both straight or bent and will not break.  Tip is flexible but will retain its shape.  Light colours are transparent causing them to work well in varnishing techniques.  Dark colours have good covering qualities.  They have unsurpassed lightfastness.  Ink is waterproof, permanent, odourless, acid free and pH neutral.  It will not bleed through paper. 
 
As always, if you have any questions about this product or similar products don't hesitate to contact us at support@norcal-art.com!