Transparent large-capacity calligraphy piston ink-absorbing fountain pen

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Core design and appearance

1. Pen size and weight

• The length is about 110-118mm when stored, about 140mm when writing (with the pen cap inserted into the tail), the diameter of the pen barrel is about 12.4-14.4mm, and the weight is only about 19g. It is light and compact, and it is not tiring to hold for a long time.

2. Pen barrel material and color

• Transparent resin pen barrel: Made of high-permeability resin material, the pen body is designed with diamond facets and has a clear texture. When used with colored ink, you can visually see the color and remaining amount of the ink. It is a popular choice among "color ink players".
• Multiple colors available: Transparent, mint green, sapphire blue and other colors are available. The metal pen grip is treated with a matte texture, taking into account both appearance and anti-slip properties.

3. Cap and details

• Rotating pen cap: The rotary cap design has better sealing and can effectively prevent the ink from drying out; the tail of the pen is threaded and supports "cap insertion" to extend the pen body and improve the grip.
• Metal pen clip and logo: chrome-plated metal pen clip, the tail of the pen is printed with the brand's iconic red logo, and the middle of the pen barrel has the TWSBI metal ring logo, with exquisite details.

Core function: piston inking system

Integrated piston inking: No need to disassemble the pen barrel, just rotate the tail to absorb ink. The operation is simple and fast, and the inking efficiency is high.

Large-capacity ink storage: The transparent pen barrel has a built-in large-capacity ink storage space. A single inking can satisfy about 3 days of daily writing (average daily 5,000 words). It has a longer battery life than traditional ink bag pens and is compatible with a variety of bottled inks.

Can be completely disassembled for maintenance: All parts are removable for easy cleaning and maintenance, and the pen is not likely to clog after long-term use.

Pen tip and writing experience

Material and craftsmanship: Made of high-precision stainless steel pen tip, which is corrosion-resistant and not easy to split. The pen tip is engraved with the TWSBI brand logo and decorative pattern.

Optional pen tip specifications: EF (approximately 0.5mm), F (approximately 0.6mm), M (approximately 0.7mm) and other thicknesses are available. The EF/F tip is suitable for daily writing and journaling, and the M tip is suitable for practicing calligraphy or signing.

Writing feel: The pen tip is smooth and does not hang paper, and the feedback is moderate; the mini steel tip is slightly harder than the standard 580 model, which is more suitable for fast writing and recording inspiration. It can also be used with different inks to adjust the damping feel.