The HW Brass-Saver® set for flugelhorn is the easiest and safest* way to clean saliva and corrosive mineral deposits from the inside of your horn. The patented design features a non-metal flexible lead pipe/slide brush (approximately 3/4" diameter and 77" long) that won't scratch or get stuck, and a double-ended valve casing brush for a complete maintenance kit. The special fiber will not shed, shrink, or swell, can be used wet or dry, and stands up to the chemicals in cleaning solutions