Common tip sizes shown are 0.5 mm and 0.7 mm (often described as fine or fine/medium) and 1.0 mm (typically described as a medium tip).
The listings include gel pens, ballpoint pens, erasable gel pens and fineliner/marker-style pens, covering both standard writing and drawing/marker-style tips.
Common comfort features include rubber or contoured grips and ergonomic barrels—examples include triangular soft-touch barrels—designed to aid comfortable, extended writing.
Erasable pens are described as using thermo-sensitive gel ink that erases with friction. Descriptions note the ink can become colorless above about 140°F and may reappear after extreme cold (around 14°F); manufacturers advise against using erasable ink on legal or official documents.
Typical uses listed include everyday writing tasks like note-taking, journaling and signing, as well as sketching, crafting and classroom or teacher supplies.
