eBay

What you will get: 20pcs 20mm piezo discs. Resonant frequency: 3.2 KHz. Leads length: 3.94 inch/100 mm. These piezo discs are light and easy to use.
Good material: The piezo discs transducer is made of brass and ceramic, it is durable and can guarantee long-term use, low power consumption and high sensitivity.
Easy to use: These piezo elements are pre-wired for easy installation and are ideal for acoustic instrument pickups, foot stompers, contact microphones and other home-made instruments for sound vibration detection.
Wide Application: The piezo discs are perfect for beginner to use as touch-sensors on DIY projects, it is fun to turn acoustic instruments into electric sound, great for installing on cigar box guitars, drum triggers etc.

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Specification:

Material: brass + ceramic

Color: as the picture showed

Package Included:

15 x Piezo Discs

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