Description:High quality and fine design: this sax neck screw is a great choice for you

Feature: It expands outwards to give a better finger grip

Material: Made of copper, it doesn't lose varnish and it's durable

Easy to install: tightens by finger and thumb

Application: Suitable for soprano, alto, and tenor saxophone

Specification:Material: CopperSize Chart:3

5cmx2

7cm/1

38inchx1

06inchPackage Includes:5 Set Saxophone Neck ScrewNote:Please allow slightly errors due to manual measurement and different monitors