Material: zinc alloy

aromatherapy

The two-height design ensures compatibility with various instruments

With phase and tuner functions

Setting Time: Easy to operate

Musical Instrument Amplifier, Guitar Accessories Baby Care Material: zinc alloyProduct name: Universal amplifier for musical instruments Inner rod material: technology fiber inner rod + silicone sleeve Ring material: ABS+ quality thick copper nut Scope of application: guitar, piano, guzheng, violin, erhu and other musical instruments, beginners can't open their fingers index finger Middle finger Ring finger Little finger inside diameter perimeter inside diameter perimeter inside diameter perimeter inside diameter perimeter