Vision Elite BLX Series Roller Ball Stick Pen, 0.8mm, Green/Black, Pack of 12 Pens BLX ink, black ink infused with color. Differentiate yourself with deep, rich business colors Subtly-textured grip provides a comfortable and controlled writing experience Exclusive pigment-based ink forms an indelible bond in paper, for intense coloration and document security Textured Grip Area with Metal Pocket Clip Flight-Safe Design - Will not Leak when Subjected to Pressure Changes