Professional Accessory: Our saxophone neck corks are specifically designed for alto saxophone curved tube, ensuring that your instrument produces a clear and pure sound. Durable Material: These saxophone corks are made from quality cork, which is durable and maintains good elasticity for long term use. Noise Elimination: Our sax neck joint corks come with a key mute feature, allowing you to practice in quiet environments without disturbing others. Easy to Use: Our musical instrument accessories are easy to install and replace, no professional assistance required. Beautiful Gift: With exquisite packaging, these alto sax neck corks make the gift for friends and family who love music. Specification: Material: Wood Size Chart: 6cmx4cmx2cm/2.36inchx1.57inchx0.79inch Package Includes: 10 PiecesSax Neck Corks Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on line shopping!