TWSBI Pipe Stainless Pipe extension to help you get to the bottom of ink bottles Fits TWSBI's Diamond series fountain pens: 580s, 580AL, 580ALR, 580RG, Diamond Mini, Diamond Mini AL, Diamond Mini RG Also fits our converters: spring converter, traditional converter. (Top fitting standard international hole size) TWSBI Inspired by writing After 50 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 50 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. The TWSBI Mission To inspire and recapture the romanticism of art and literature starting with the pen. To achieve their mission: - They are dedicated to manufacturing the highest quality and precision writing instruments- Tailoring our products according to our customer's wants and needs- Providing sincere and dedicated customer service
