A slider.
A trombone has a slide, which other brass instruments lack.
The trumpet and trombone both belong to the brass family.
The trombone is classified as: low brass, and or brass.
A trombone has a slide. The slide allows it to do the infamous glissandos.
The trombone is the only instrument in the brass section with no keys or valves. It only has a slide.
A slide
A trombone has a slide, which other brass instruments lack.
The trumpet and trombone both belong to the brass family.
Sakbut
The trombone is classified as: low brass, and or brass.
A trombone has a slide. The slide allows it to do the infamous glissandos.
Brass
The trombone's made out of brass.
The traditional material for the Trombone is brass.
It has a slide, rather than buttons.
It has a slide, rather than buttons.
The Trombone is part of the brass family.