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Home / Fountain Pens / Dianshi Rocket Time Capsule Fountain Pen DS-7156, Fine EF Nib 0.38mm for Student Calligraphy Practice, Non-Thermal Erasable, Refillable Ink Cartridge System

Attributes

Brand -
Category Stationery, Educational Electronics & Office Supplies / Fountain Pens
Origin -
Brand Dianshi
Model Number DS-7156
Nib Size Fine EF (0.38mm)
Ink System Refillable Cartridge
Material High-grade Resin with Metal Accents
Ink Type Non-thermal Erasable Blue-Black
Ideal For Students and Calligraphy Practice
Cap Type Snap-on with Inner Cap
Weight 18 grams
Package Contents 1 Pen, 2 Ink Cartridges, User Manual

6 reviews

A

Anonymous

Mar 27, 2026

Rating: 4/5

Great value student pen

Solid build quality for the price. The grip is comfortable for long writing sessions. I deducted one star because the included ink cartridges run out slightly faster than expected.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Perfect for daily note-taking

The 0.38mm nib is incredibly smooth and precise. It glides over paper without skipping, making it ideal for my university lectures. The erasable feature is a lifesaver for quick corrections.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Reliable and refillable

Love that this uses standard international cartridges. It's eco-friendly to just replace the ink rather than the whole pen. The erasable ink disappears completely when rubbed.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Smooth writer, stylish design

The 'Time Capsule' design looks vintage yet modern. Ink flow is consistent, and I haven't experienced any drying issues even after leaving the cap off for a minute accidentally.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Excellent for calligraphy practice

I bought this for my daughter to practice handwriting. The fine tip helps her form letters neatly, and the fact that mistakes can be erased cleanly is fantastic for beginners.

A

Anonymous

Mar 07, 2026

Rating: 3/5

Good but nib is very fine

The pen writes well, but the 0.38mm is finer than I anticipated. If you have heavy hand pressure, it might feel a bit scratchy on rougher paper. Works best on smooth notebook paper.

5 FAQ

Q: How do I clean the pen if I want to change ink colors?

A: Simply remove the old cartridge, rinse the nib section gently with cool water until the water runs clear, let it dry completely, and insert a new cartridge.

Q: Can I use standard international ink cartridges with this model?

A: Absolutely. The DS-7156 is designed to accept standard short international ink cartridges, which are widely available.

Q: Does this pen come with ink cartridges included?

A: Yes, the package includes two blue-black ink cartridges to get you started immediately.

Q: What is the exact width of the nib line?

A: The Fine EF nib produces a line width of approximately 0.38mm, suitable for detailed writing and small handwriting.

Q: Is the ink truly erasable without damaging the paper?

A: Yes, the non-thermal erasable ink can be removed cleanly using the eraser on the cap end without tearing or smudging most standard papers.

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