Take it out and put the tattered side into the marker

they made sure it actually performs

The Pen is filled with a Gel ink that flows easily and comes in seven different colors

and permanent once set

which matters for straight-edge and template work where the tip drags against a ruler edge repeatedly

on the run otr 003 s empty superflow squeeze marker 18 mm Saeio Take it out and putThe OTR. 003 S Empty Superflow squeeze marker comes with an 18mm round tricot nib and 90ml squeezable body. Pop out the nib, fill it up, and you're ready. Works with OTR. 901 Soultip paint or pretty much any OTR refill Superflow paint, marker paint, Hard To Buff ink, Flowpen ink, whatever you're running. Squeeze harder for heavy flow, ease up for controlled lines. The tricot nib handles different paint viscosities without clogging. 90ml holds enough