It is a water-based pigment ink that is non-toxic, lightfast, and waterproof. Unlike alcohol-based marker ink, the ink does not bleed.
Uni Posca PC-5M Paint Marker Medium Point 8 Color Box Set
Uni Posca PC-5M Medium Tip Paint Marker Set
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Uni-Ball POSCA PC-5M Paint Marker Art Pens - 1.8-2.5mm – Gray, Deep Gray, Slate Gray - Pack of 3 : : Home
Uni Posca PC-5M 16 Color Medium Tip Paint Marker Set
Uni Posca Paint Marker PC-1M White, 3 pens per Pack(Japan Import) [Komainu-Dou Original Package] : Everything Else
UNI POSCA PC-5M MARKER PEN - SKY BLUE (PACK OF 12) : Office Products
Uni Posca Paint Marker PC-1M White, 3 pens per Pack(Japan Import) [Komainu-Dou Original Package] : Everything Else
EASY Posca Paint Pens PRO TIP for Mind-Blowing MIXED MEDIA PORTRAITS - KAREN CAMPBELL, ARTIST