It's solid for adding depth

shading over existing work

and all sorts of urban art

plastic-like paint application

on the run otr 001 soultip empty squeeze marker 22 mm Sior It's solid for adding depthOne of our favourites! Empty OTR. 001 squeeze marker from On The Run, that can be filled with ink, acrylic ink or lacquer paints. The marker itself is made from flexible plastic, so you can get a nice flow in your lines. The shape of the pen is designed to make the ink flow toward the tip, even when its held against a wall. Equipped with a durable 20 mm tip, that can be changed when needed. Check out all markers and inks from On The Run here.