Features:
1.Each item is qualify checked with a unique Manufacturing Part Number label on the inner package;in order to confirm if it is authentic item sold by our store.
2.Any question,please contact and send us the MPN label information.
3.Made of zinc ally, with Abalone Shell inlay.
4.For replacing old, broken and missing buttons.
5.Help to improve the accuracy of the keys and improve the fluency of playing.

Specifications:
Material: Zinc Alloy
Color: Silver + Abalone Shell
Brand name: Yibuy
Size: approx 16.5 x 10mm/0.65 x 0.39 inch(Dia x T)
Thread Dia: approx 3.9mm
Weight: 16g

Package include:
3 x Trumpets Finger Buttons