Classic flowpen filled with alcohol based lacquer paint. These paints adhere to nearly any surface, and are also permanent, opaque and dries with a glossy finish. The On The Run OTR.060 Flowpen Paint Marker 15 mm comes in a wide range of colours. Each pen comes equipped with a 15 mm fiber tip that has a pump mechanism, to help control the ink flow.Like most other On The Run pens, these can be refilled and the tip can be changed when needed as well.