The Takayama Chasen from Nara Prefecture in Japan is indeed a remarkable example of traditional Japanese craftsmanship. These tea whisks are made entirely by hand, a process that preserves the time - honored techniques passed down through generations. The use of black bamboo, combined with the meticulous attention to detail by the craftsmen, results in a chasen that is not only functional but also aesthetically beautiful. 

The true shape, characterized by its oval curve, is a distinctive feature of these whisks. This design involves careful shaping of not just the tips but the entire whisk, ensuring flexibility and durability. The skill involved in creating a Takayama Chasen is considerable, and with only about 15 tea craftsmen in Japan, these items are quite rare and valuable. 

Their ability to bend well is particularly noted, which is crucial for producing matcha with a fine and smooth texture. The longevity of these whisks is also a testament to their quality, as they are crafted to be used for a long time. Owning a Takayama Chasen is not just about having a tool for making matcha; it's about possessing a piece of Japanese cultural heritage.