"There's nothing to fear. Those are lylek tubes. The sound keeps them away. Irritates their brains. My grandfather says its gives them a headache so they don't come around."
―Drua to Emperor Palpatine[src]

Lylek tubes were musical instruments used by the Twi'leks to keep the predatory lyleks away. According to Drua's grandfather, those tubes produced a buzzing sound that steered the lyleks in another direction by giving them a headache.[1]


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