Durable construction This original replacement accessory is built with durable materials to ensure long service life and reliable performance. Adjustable string pitch The pitch components are adjustable, allowing you to set the string pitch to your preference or musical needs. Versatile replacement accessory Suitable for erhu and guitars and other instruments, making it a multifunction Urheen parts replacement accessory. Improves erhu music The adjustable pitch adapts to the rhythm of your music and enhances melodies, delivering a more pleasant performance. Use scenarios - In erhu practice, tailor the pitch for comfort and piece tempo. - On stage or in the studio, adjust pitch to align with guitars or other instruments in the ensemble. - As a maintenance upgrade, refresh and extend instrument life in schools, studios, or at home.