On The Run OTR.970 Hard To Buff Ink Refill 120 ml Alfe That's what keeps the line

That's what keeps the line crisp instead of bleeding

Fluorescent Turquoise

long enough to stay visible and stable when you're working along a ruler

the lines from these markers turn into different colors as you draw or write

soft pastel

On The Run OTR.970 Hard To Buff Ink Refill 120 ml Alfe That's what keeps the lineJust like the name claims, this ink is near impossible to remove once its completely dry. Alcohol based, black and permanent ink that works well with most surfaces and markers. Fill up your old markers, or buy empty markers here. Comes in a 120 ml bottle, with a handy little pouring tip. Use a lot of ink? Buy the bigger bottle instead: On The Run OTR. 970 Hard To Buff Ink 210 ml.