The Westminster Tunable Bb Bugle features a 4 ft 6 in conical-bore tube, producing a mellow, flugel-like tone. Pitched in B♭, the instrument is typically played using music notated in C. Like traditional bugles, it has no valves, relying on the player's embouchure to control pitch within the harmonic series.

Bugles have a long history in military communication, traditionally used to signal daily routines, relay commands and support ceremonial duties. Today, they remain a popular choice for military and ceremonial performances.

Constructed from brass with a silver-plated finish, this bugle features a tunable lead pipe for accurate pitch adjustment. Manufactured to strict UK Ministry of Defence specifications, it is well suited for ceremonial and military use.