The revolutionary nib of the Air, unlike conventional rollerballs, is pressure sensitive, meaning that it gives a writing experience and differentiating line width similar to that of a fountain pen.
The metal ball of the nib is encased in an acetal plastic, rather than the standard metal surround, which allows for a smoother flow of ink around the ball, and an increased flow as further pressure is applied.
The 0.5mm ball delivers a line width of between 0.28mm and 0.45mm (dependent on pressure).
Features Uni''s high quality ''Super Ink'', which is not only water and light resistant, but also ''Tamper-Resistant'', meaning that the ink cannot be washed off using chemicals and solutions used by people to fraudulently modify documents.
Pack contains one of each of the following coloured inked pens: Black, Blue, and Red.

Technical Details

Product Details

Package Dimensions
Width : 2.52 inch
Height : 0.12 inch
Length : 5.51 inch

Shipping Weight: 1.6 ounce (View shipping rates and policies)

ASIN : B01M3SM5DH