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Philip Wang
ProductsWriting Instruments

After 40 plus years as an OEM manufacturer for different global brands, Ta Shin Precision decided to start selling under their own brand, and thus TWSBI was born.

TaShin Precision has over 40 years of experience in manufacturing with plastics and metals. Early products ranged from toy lego parts to high end writing instruments. This knowledge trickles down into every product TWSBI has to offer.

TWSBI's name stands for the phrase "Hall of Three Cultures" or "San Wen Tong" in Chinese. The character "Wen" translates into language and culture. The phrase "San Wen Tong" also brings to mind the Hall of the Three Rare Treasures created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the phrase "San Wen Tong" was reversed and thus turned into "TWS". The last letters "Bi" was added with its literal meaning of "writing instruments". Thus combining the two segments, creating TWSBI.[1]

Fountain Pens[edit | edit source]

TWSBI has brought several affordable fountain pens to market over the past few years. The majority of their pens are piston filler pens, but they also have a couple vacuum filler pens. Prices range from $30 USD for the Eco to $65 USD for the Vac-700R.

Classic[edit | edit source]

The Classic is a solid colored piston filler pen, with chrome trim. Available in three colors, it has an ink window on the section just above the cap threads.

Diamond 580[edit | edit source]

The Diamond 580, often just called the 580, is a demonstrator piston filler pen. Available in two versions, the standard plastic version, and an aluminum version. Both versions are available in limited run colored options, with the cap, section and piston knob colored in the standard plastic version, and the section and piston mechanism colored in the aluminum versions.

Prior versions include the Diamond 530, and Diamond 540

Diamond Mini[edit | edit source]

The Diamond Mini is a smaller version of the 580. Still a piston filler, and available in the standard plastic or aluminum versions like it's full sized sibling. The cap screws to post.

Eco[edit | edit source]

The TWSBI Eco, Eco for economical, is TWSBI's most affordable fountain pen. At only $30, it is an often recommended starter pen, as it is one of the cheapest piston filler pens on the market. Available in 4 colors, the Eco is a demonstrator pen with a colored cap and piston knob.

Micarta - Discontinued[edit | edit source]

The TWSBI Micarta was TWSBI's only cartridge converter pen. Made out of Micarta, it had two versions, the original (v1), and the updated (v2). Both came with gold plated steel nibs, and gold plated clips, although v2 was also available in a clipless version.

Vac-700R[edit | edit source]

The Vac-700R is a full sized vacuum filler pen. The Vac-700R is a demonstrator pen with a translucent smoke colored section and piston knob. The pen features an ink shut-off valve, when the piston knob is screwed close, it shuts off the ink reservoir from the feed. In order to write for longer sessions, the piston knob needs to be unscrewed. This is very useful for frequent fliers as they won't have to worry about ink leaking while in the air.

Prior versions include the Vac-700

Vac Mini[edit | edit source]

The Vac Mini is the smaller version of the Vac-700. Available in full demonstrator, or similar to it's full sized sibling, with a smoked section and piston knob.

Mechanical Pencils[edit | edit source]

Precision Mechanical Pencil[edit | edit source]

The Precision Mechanical Pencil is available in two colors, black and silver, and in two lead sizes, 0.7mm, and 0.5mm.

Notebooks[edit | edit source]

TWSBI has a small line of notebooks, similar to a Moleskine or Leuchtturm1917 notebook, it is available in three sizes; small, medium, and large.

Ink Wells[edit | edit source]

TWSBI has two ink wells in their product line. They are designed to work with the correspondingly named pens, but will work with the majority of fountain pens.

Diamond 50[edit | edit source]

The Diamond 50 is a 50mL ink well. Designed to screw onto the barrel of the Diamond fountain pen line, it allows an easy and mess-free inking of the Diamond fountain pen line. It also includes an inner inkwell for filling most other fountain pens.

Vac 20A[edit | edit source]

The Vac 20A is a smaller 20mL ink well. Designed to work with the Vac line of pens (although it may not work with the newly redesigned Vac-700), it also works with the majority of other fountain pens. The 20mL size offers more usability towards travel.

References and Notes[edit | edit source]