Features:
Good elasticity: The spring is durable and elastic, easy to use.
Anti-rust: The surface of the spring is coated and not easy to rust.
High hardness: The spring has high hardness and is not easy to wear.
Specification:
material: metal
Color: as shown in the picture
Size: as shown in the picture
Scope of application: B flat trumpet, cornet, palm trumpet
Package includes: 3 pieces