Beer bottle ice holder: safe to use. this accessory can help upgrade an old or broken euphonium by replacing it with a new one during maintenance or setup, enabling a quick, reliable refresh. Saxophone accessories: this professional euphonium accessory is suitable for players of different levels and abilities, providing versatile compatibility and dependable performance for beginners through advanced players. Trumpet replacement: the appearance is smooth, beautiful and fashionable, making it a unique accessory for euphonium that enhances style while supporting instrument function. Swing swivel: made of copper material, it is durable and resistant to damage and deformation, supporting consistent operation under regular use. Use scenarios: - In a repair or upgrade session, swap in this kit to refresh an older euphonium and restore performance. - For practice, rehearsal, or live performances, benefit from compatible accessories that suit players of varying skill levels and deliver reliable function. - During transport or stage setup, rely on the durable copper swing swivel to minimize wear and maintain smooth movement and stability.