In-Depth Review: Hongqiang 5187 Refillable Fountain Pen Ink Cartridges

1. First Impressions & Branding

The 5187 model comes with a strong motivational theme. Words like "BE YOURSELF", "勤奋" (Diligence), "Cherish the time", and "光阳在苒 日月如梭" (Time flies like a shuttle) are prominently displayed. This positions the pen as ideal for students and young professionals who need daily writing tools with a positive reminder.

The packaging and pen body carry a "LED watch" reference (03:25 / 03:26), though this likely refers to a companion product or a themed design rather than an actual watch built into the pen.

2. Ink Type – Erasable Blue

Like its 7069 cousin, the 5187 uses erasable blue ink.

• How it works: The pen has an erasable rubber tip (usually on the back of the barrel or as a separate end cap).

• Performance: Rubbing friction generates heat, which makes the blue ink disappear. This is perfect for students practicing handwriting or anyone who makes frequent mistakes.

• 
  Note: The ink is thermosensitive – extreme cold may make the erased writing reappear.

3. Refillable Cartridge System

The 5187 is a refillable fountain pen, meaning:

• You don't throw away the whole pen when ink runs out.

• Uses standard ink cartridges or a converter (depending on the specific set).

• Eco-friendly and cost-effective over time.

4. Writing Experience

• Nib quality: Typical Chinese fine nib – smooth enough for everyday writing, with slight feedback.

• Ink flow: Consistent, not too wet. The erasable blue ink dries relatively fast, reducing smudging (important for left-handed writers).

• Line width: Fine to medium – good for school notebooks, journals, and forms.

5. Special Features

• Erasable magic tip: Clean corrections without correction fluid or tape.

• Scent? Not explicitly mentioned in the 5187 images, but Hongqiang often adds light fruit scents to their erasable inks (based on 7069 "Summer Fruit Scent"). Assume a mild, non-intrusive smell if present.

• LED watch design theme: The numbers 03:25 / 03:26 appear repeatedly – possibly a limited edition or a collaboration with an LED watch brand. Purely aesthetic.

6. Target Audience

 

Best for	Not ideal for
School students (grades 3–12)	Professional legal documents (erasable ink is not permanent)
Journaling / diary writing	Archival records
Left-handed learners	Artists needing waterproof ink
Budget-conscious fountain pen beginners

7. Pros & Cons

Pros:
✅ Erasable blue ink – mistake-friendly
✅ Refillable – saves money and reduces waste
✅ Motivational quotes on body – nice daily reminder
✅ Smooth fine nib – good for small handwriting
✅ Lightweight – comfortable for long writing sessions

Cons:
❌ Erasable ink can fade or reappear under extreme temperature
❌ Not waterproof – avoid spilling drinks on notes
❌ Limited ink color options (mostly blue)
❌ Erasing too hard may damage paper surface

8. Verdict (Rating: 4.2/5)

The Hongqiang 5187 Refillable Fountain Pen with Erasable Blue Ink is an excellent student-focused writing tool. It combines the elegance of a fountain pen with the practicality of erasable ink – something ballpoint pens cannot offer.

If you need a pen for daily practice, homework, or journaling where mistakes are common, the 5187 is a smart, affordable choice. Just remember not to use it for official documents or anything that needs to last forever.

Final recommendation:

• For students aged 8–18: Yes, highly recommended.

• For fountain pen collectors: No – this is a utility pen, not a luxury item.

• For office use: Only for internal notes, not for signatures.

Product Image

Image 1	Image 2
Image 3	Image 4

Product Videos