Jo-Ral 4A Aluminum Trumpet Bucket Mute - The Jo-Ral 4A Trumpet Bucket Mute features aluminum construction.The acoustic design of trumpet mutes creates an exciting tonal quality that results in near-perfect intonation. Mutes are made spun aluminum, and have been tested to perform evenly all registers.The bucket mute provides a unique, haunting sound is both deep slightly hollow. This specialized for distinctive sound. band-and-orchestra, accessories for band-and-orchestra, Brass Mutes, Trumpet & Cornet Mutes