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Available tips include Ultra Fine, Extra Fine, and Fine—commonly shown as 0.38 mm (Ultra Fine), 0.5 mm (Extra Fine), and 0.7 mm (Fine).
The range includes rolling-ball and gel ink pens plus fineliner/marker-style tips. Several items also use erasable thermo-sensitive ink.
In the available descriptions: Extra Fine = 0.5 mm, Ultra Fine = 0.38 mm, and Fine = 0.7 mm.
Many of the pens are retractable. At least one fineliner-style option is capped and includes an eraser on the cap.
Reviewers most often praise smooth writing, good ink flow, consistent/dark ink in many cases, and clean erases where erasable ink is used.
