UNI-BALL VISION ELITE ROLLERBALL UB-200 - VIOLET "Pack of 12" The Uni-Ball UB-200 Rollerball Pen offers Outstanding Style with High Performance High Quality & Reliable Rollerball Featuring Water-Proof Pigment Ink & Uni-Flow System to Ensure a Continuous and Consistant Write to the Last Drop Textured Grip Area with Metal Pocket Clip Flight-Safe Design - Will not Leak when Subjected to Pressure Changes Fine Tip, 0.8mm Rollerball Writes a 0.6mm Line