Trombones Water Key drain valve designed for efficient water release and reliable instrument maintenance. Simple to install and built for long term use, this water key helps keep your trombone sounding clear by letting accumulated moisture escape quickly and cleanly. Key benefits Efficient drainage: Releases water build up for clearer sound and smoother playing. Durable construction: Coppers plated finish and Zincs Alloy materials provide long lasting performance and a secure seal against leakage during play. Universal use: Suitable for trombone players at all levels, from students to professionals, for regular maintenance and performance readiness. Clean, elegant look: Smooth design complements your instrument and adds a refined visual detail. Features and performance Designed for quick, reliable operation during concerts, rehearsals, and practice sessions. Helps prevent sputtering and tonal interruptions caused by trapped moisture. Compact size that fits standard trombone water key locations without altering playability. Specifications Materials: Zincs Alloy, Coppers Base Color: as the picture shows Size: approx. 19.5mm / 0.76in Package weight: approx. 12g Typical use scenarios Concert performance: Quickly drain moisture between pieces to maintain consistent tone and response. Band rehearsal: Keep the instrument ready for long rehearsal sessions where moisture accumulates. Individual practice and maintenance: Simple replacement or upgrade for clearer sound during everyday practice and instrument care. Package includes 1 x Trombones Water Key Notes Please allow 13mm error due to manual measurement. Color may vary slightly from the picture depending on monitor display.