The Uni-Ball Rollerball Pens utilise a fine 0.5mm nib giving a fine line width, very useful when drawing any detailed work or standard writing tasks. As with Uni-Ball products the pen contains a super ink that is water resistant, fade resistant and tamper proof thus guarding you against anyone altering serious documents you may have written. On top of that the pen provides a seamless flow of ink right down to the last bit which you can check in the window on the side of the pen, giving a consistent and fluid writing experience. The uni-ball Eye Micro contains uni Super Ink, which is fade resistant, water resistant and tamper proof. A unique \'uni-flow\' system ensures a continuous flow of ink right down to the last drop. - Fine 0.5mm nib - Consistent Smooth Writing - Transparent ink reservoir window - Uses super ink which is fade resistant, water resistant and tamper proof - Plastic free packaging - Pack of 5 - Colour is Black - Fluid and consistent writing experience