percussion instruments [2]
Group of instruments that are struck directly with the hands or with sticks, mallets, etc. to produce a sound.
snare drum 
Flat drum consisting of two membranes; stretched across the lower membrane are snares that produce a rattling sound.
snare 
Metal snares that vibrate on the snare head when the batter head is struck, producing a rattling sound.
snare strainer 
Knob that adjusts snare tension and tone.
tension rod 
Device that brings the snare closer to or farther from the snare head.
snare head 
Soundboard over which the snare is stretched.
lug 
Part that secures the metal hoops that stretch the membranes.