Dianshi Space Capsule Retractable Fountain Pen, Small Capsule Door for Third Grade Students' Homework, Back-To Season Handwriting Practice, Fine Nib, Non-Spilling Ink, 7158 (Blue Barrel - Erasable Blue Magic Liquid), 1 Pen with 5 Ink Cartridges

Dianshi brand ink sac for smoother writing, available in erasable blue and erasable navy blue, not erasable black.

Dianshi brand pen-making, model DS-1784, with adjustable ink sac.

Dianshi brand push-button pen special ink sac, erasable magic liquid, multiple colors available, easy installation, new product, available in packs of 5 or 20, in small box or rocket pack.

Dianshi brand pen-making specializing in pens, model DS-7158, push-button pen with no drying, leaking, or splattering ink, featuring a small cabin door design.

DS-7158 push-button pen by Dianshi with positive reviews for maintaining ink flow even after two weeks, excellent air tightness, and convenient operation.

Dianshi push-button pens are highly recommended for their quality and design.

Dianshi push-button pens feature a unique starry sky design with transparent colored pen bodies, advanced technology, and comfortable writing experience.

DS-7158 push-button pen by Dianshi with cabin door design, sealed structure, and even ink flow, suitable for students with ergonomic grip design.

Dianshi push-button pen special ink sacs are economical and easy to install, suitable for everyday use.

Dianshi pen-making emphasizes quality and innovation in pen design.

DS-7158 push-button pen by Dianshi comes with replaceable ink sacs for easy maintenance.

Dianshi pen-making provides instructions for installing ink sacs and using erasable ink responsibly.