This is a set of a sound-reducing "uma" (bridge) made of ebony and a tuner for Okinawan sanshin and Amami sanshin. Brand new, unused. The sound-reducing uma is a convenient item for practicing sanshin at night or for those who are worried about disturbing others while playing. The sanshin mute uma (sound-reducing uma) is thick and significantly reduces the sound. The material is high-quality black wood. Easy to use! Just replace the uma on your sanshin! For men, place it with three fingers from the bottom, and for women, place it with four fingers from the bottom! Now you can play the sanshin without worrying about your surroundings. (※ The sound of the sanshin will be very quiet.) This tuner can be used for Okinawan sanshin and Amami sanshin. Anyone can easily tune with this. Instruction manual included. (Tuning chart also included as a service.) ※ Sanshin body not included (sample)