Okinawan Sanshin Strings (Chiru) and Uma (Ebony) Set This is a set of strings and uma for the Okinawan sanshin. String set of 3 x 2 Meegane (female string) x 2 Uma x 2, Ebony The meegane (female string) is the most likely to break, so we've included a set of 4. The uma is made of ebony. The sound is good, but like bamboo, it is prone to breaking, so we've included a set of 2. Please consider this. ※※※※ ※※※※ ※※※※ ※※※※※ We will be listing Okinawan sanshin and sanshin-related items, so please take a look.