72mm Classical Acoustic Guitar Soft Pickup Transducer Piezo Bridge Pickup Folk Guitar Bridge Saddle Pick Rod Guitar Accessories - Guitar Parts & Accessories - AliExpress
Amazon.com: Guitar Piezo Transducer,1Pc High Sensitivity Under Saddle Piezo Pickup with 2.5mm Jack for Guitar Accessory Fishman Acoustic Guitar Transducer Trans piezo under saddle pickup piezo under saddle picku : Musical Instruments
ARTEC® UNDER SADDLE PIEZO PICKUP FOR CLASSICAL GUITAR 58mm STRING SPACING - Fred's Guitar Parts
K&K Sound Pure Pickup Acoustic Guitar Pickup for Steel or Nylon String ( Classical) Guitar
Classical Guitar Transducer | Pro Guitar Pickups
Element Acoustic Guitar Undersaddle Pickup — LR Baggs