TWSBI’s mission is 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. They tailor their products according to their customer's wants and needs and provide sincere and dedicated customer service. Pen cap is able to post onto the back of the pen. Piston Filler Fountain pen. Simply unscrew the end cap, dip into ink, screw back the end cap, and you're done! Ready to write!! Pen cap has an inner cap to ensure a perfect seal when stored away. Made for the beginner who just wants to try out fountain pens, all the way to the experts. A good everyday worker. After 50 plus years as an Original Equipment Manufacturer for different global brands, TaShin Precision decided to start selling under their own brand, and thus TWSBI was born. TaShin Precision has over fifty years of experience 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 Chinese phrase "San Wen Tong" which means "Hall of Three Cultures". "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 "B” and “I" were added with its literal meaning of "writing instruments". Thus combining the two segments, creating TWSBI.