Perfect for watercoloring

Also it comes with one ruler

these refills are available in every colour of the range

featuring a wider selection of the most popular colors from the Uni Posca range

and super opaque finish with a deep matte look

grog xtra flow paint refill 100ml Colors:Goldrake Purple Perfect for watercoloringGrog Xtra Flow Paint Refill, 100ml is the stuff that keeps your markers flowing smooth and steady. Packed in a tough plastic bottle, its made to refill all your Grog Green Label markers. With 100 ml of glossy, opaque, alcohol based paint, it glides like butterno streaks, no drama. Perfect for the Cutter markers, and ready for indoor or outdoor sessions, its the refill that keeps your colors bold and your lines sharp.