Most listings show point sizes of 0.5 mm, 0.7 mm, and 1.0 mm, covering fine to medium writing needs.
Yes — some listings indicate pens are refillable or include refills, others offer larger‑capacity refill options, and a few models note low‑ink indicator windows to show when replacement is needed.
Common comfort features include soft‑touch or soft‑matte barrel finishes and ergonomic grips; some pens use metal or stainless steel barrels that are described as providing a firmer, comfortable hold.
Yes — several models use silent‑click retractable mechanisms to reduce noise, and others include novelty touches such as decorative crystal tops or twist‑to‑write mechanisms.
Erasable thermo‑sensitive inks can become colorless with heat (noted around ~140°F) and may disappear with ironing or lamination; cooling can restore color, and these inks are generally not recommended for legal or official documents.
