Uni-Ball AIR Micro - 0.5mm Fine Rollerball - Pack of 3 - Black - UBA-188-M

Uni-Ball AIR Micro - 0.5mm Fine Rollerball - Pack of 3 - Black, Blue, and Red - UBA-188-M

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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.

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Product Review

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.

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