On The Run OTR.970 Hard To Buff Ink Refill 120 ml
Just like the name claims, this ink is near impossible to remove once it’s 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.