Uni-Ball Vision Elite Bold 0.8mm - 4 Pens Enjoy smooth writing performance right down to the last drop of ink, thanks to the advanced liquid ink UNI-FLOW SYSTEM. Ink that is waterproof, resistant to fading and discolorations from exposure to light and possesses superior color brightness. TIP Stainless steel BALL 0.8 mm dia. tungsten carbide ball
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