Features:
1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;
2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.
3.The function of this product is to separate the noise, buffering effect.
4.Scope of application: flat key euphonium / tuba / round piston rubber
5.Silicone material, flexible, not easily deformed.