Key benefits Provides a stable and secure connection between headjoint and body for consistent playing performance. Durable copper construction for long service life and reliable use during practice and performance. Lightweight and compact design makes it easy to carry as a spare or replacement part. Simple to install and suitable as an essential part for maintaining woodwind instruments. Product features Function: screw cap for flute headjoint, serving as an end cap or crown screw to hold the headjoint connection firmly in place. Material: crafted from sturdy copper for strength and wear resistance. Portability: compact size and low weight allow musicians to store a spare screw cap in their instrument case or gig bag. Performance: helps maintain a consistent seal and alignment at the headjoint joint, supporting stable tone and response. Practical applications Quick replacement during rehearsals or performances when the original headjoint screw cap is lost or damaged. Routine instrument maintenance and to restore proper headjoint alignment and connection. Carrying as a spare part for school bands, marching ensembles, private lessons, and travel. Why you need it Prevents playability issues caused by loose or missing headjoint hardware. Extends the usable life of a flute by replacing a worn or damaged end cap component. Offers a straightforward, durable solution that is easy to fit and keep on hand. Notes Intended for use as a flute headjoint screw cap or end cap. Confirm fit with your instrument if specific dimensions or model compatibility are required.