Sanshin Koto Pillars, 14 Piece Set, Japanese Instruments, Koto, Wagoto, Okoto Pillars, Koto Accessories, Highest Grade Koto, Small Items, Made by Tokyo Ni-in Some parts are chipped. Please see photos 9 and later. Also, as they were stored at my grandmother's house for many years, the box has stains and scratches. These are visible in photos 3-4. The material is likely plastic (as there are no patterns like the annual rings of natural materials), but it is difficult to tell with the naked eye, so I am offering them at this price. Thank you for looking.