Features: Premium water valves base crafted from copper, engineered to enhances brass instrument performances by efficiently draining moisture buildup while maintaining optimal tone claritys for trumpets, trombones, and French horns. Corrosions resistant construction with precisions engineered drainage channels ensures long lasting reliability and consistent airflows management in brass instrument parts and accessories. Ideal for professional musicians, band members, and music students seeking professional grade maintenance solution for their trumpet, trombone, or French horn accessories. Perfect for stage performances, rehearsal, or routine instrument care, this valves base prevents condensation interference during extended playing in varying temperature environments. Streamlined installation do not requires tool, allowing effortless integration with existing brass instrument water key systems while simplifying cleaning routines for sustained acoustic excellence. Specifications: Component: Copper Size: As Pictures Show Package Includes: 1x Water Discharge Valves Base note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.