DescriptionPiezo discs are great for constructing pickups for acoustic instruments. Many users love them as the pickup in cigar box guitars, and they are a favorite amongst people experimenting with electric drum triggers.This item is well made of premium material for durable and practical use.Feature- Color: As shown. - Material: Copper. - Size: Approx. 2.3 x 2.3 cm / 0.9 x 0.9 inch (L x W). - Great for acoustic instrument pickups, stomp boxes, mics, etc. - Primarily used in acoustic guitars, CBGs, drums, and microphones - 23mm brass outer diameter plate. - Resonant Frequency: 4.6KHz +/- 0.5KHz
