Fangrui Product Details Sound Post Setter For Cello Is A Great Tool, Easy To Insert, Remove Or Adjust Your Cello Sound Post. And Can Be Used For A Long Time. With This Sound Post Setter, Luthiers Can Make Precisely Adjustments To The Sound Post Position. The Tool Has A Tip That Enables Luthier To Insert The Sound Post Securely In Place, Avoiding Any Damage To The Cello Interior. The Sound Post Setter Tool Is A Must-have Tool For Luthier Who Want To Create The Cello Sound For Their Clients. Professional Cello Sound Post Tool; For Cello Player And Diy Luthier. Quality And Exquisite Workmanship. Precision Performance. Sound Hook Style:b:curved With Black Colour:gold Material:zinc Alloy Package Contents: 1 * Sound Post Gauge 1 * Sound Post Retriever 1 * Sound Post Setter Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.