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440 hz A required standard tuning tuning A piano violin guitar general tuning fork
Specifications:
- Unit Type: piece
- Package Weight: 0.5kg (1.10lb.)
- Package Size: 15cm x 10cm x 10cm (5.91in x 3.94in x 3.94in)
- Origin: CN(Origin)
- Brand Name: XING CHENG
- Free shipping
- 100 days returns
- Low prices
- 5 million products