On The Run Soultip paint marker.
Bright and unique colors, opaque, permanent, soft squeezable plastic, excellent drip control, refillable, replaceable nib.
Works best on smoother surfaces like metal, glass, canvas.
Available in two sizes:
005 - filled with 30ml of paint, has 12mm round mohair tip ($9)
006 - filled with 15ml of paint has 6mm round nylon tip ($6)