They provide a secure and stable connection, preventing any issues with loose parts. Ideal for regular maintenance and repairs, these screws are a must-have for any trumpet player looking to keep their instrument in excellent condition. Features -Color:Silver -Material:Metal -Size:2.10X2.10X1.30cm/0.83X0.83X0.51in -Size:2.00X2.00X0.70cm/0.79X0.79X0.28in -Stable connection: a secure fit, preventing the trumpet valves from loosening and ensuring consistent performance -Problemsolving design: solves the problem of traditional valve screws loosening, allowing musicians to play without interruptions -Versatile use: Ideal for school bands, individual practice, and performances, catering to a wide range of needs -Durable design: durable material ensures the product's longevity and reliability -Quick and easy setup: the carefully designed screw caps make installation simple and efficient, allowing musicians to focus on their list: 6 x Trumpet Valve Buttons