Features: Consist of high-quality plastomer component, providing excellent sound transmission and durability, ensuring long-term use without easy damage. Adapt to various models of saxophones to ensures consistency in key sensitivity and pitch accuracy. Easy installation or replacement, saving time and effort for music enthusiasts. The button pad is light weight and will not affect the comfort and convenience of playing during use. Used in various concerts, performances, and competitions to enhances instrument performances. Specifications: Color:Three Choices Dimension:1.5cm/0.59in 12.4cm/0.390.94in 1cm/0.39in Component:plastomer Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Package includes: 1set Saxophone Key Inlays