Yibuy Silver Trumpets Finger Buttons Zinc Alloy with Shell Inlays Pack of 3

Note: Thread Dia: approx 3.9mm, Please check if the thread size is suitable for your trumpet before buying 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 White 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 + White 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: 15g Package include: 3 x Trumpets Finger Buttons