15 mm — micro-detailing

it's sized to match narrow-ruled lines and 5 mm dot-grid spacing rather than standard wide correction tape

acid-free — 5 mm dot grid

The casing is selected fine-grained wood

flat-opening thread-bound hardcover

on the run otr 4468 empty superflow paint marker 8 mm round Zipit 15 mm — micro-detailingThe OTR. 4468 Empty Superflow marker comes with an 8mm round tip and empty refillable body. Unscrew the base, fill it with any OTR refill Soultip paint, Superflow paint, marker paint, Hard To Buff ink, Flowpen ink, whatever you're running. Also works with most other paints, inks, or liquids if you want to experiment. Refillable body means you keep using the same marker, just swap what's inside. 8mm round tip puts down consistent medium width lines.