20 x 27mm Piezo Discs Piezo Pickup. Colour 27 mm. 20 x foam sticker. Item Weight 30 g. Static Capacitance: 28000PF +/- 30%. Plate Material: Brass. Part number JK-YM-297. 【High Quality】:Made of brass and ceramic, temperature resistant, stable, durable and long service life.
