Graph Tech PN 8364-00

Graph Tech Ghost saddle pickups. Set of 4 pieces. Get studio-quality acoustic sound or MIDI-compatible output at the flick of a switch. Incredibly authentic, studio-quality acoustic tone. Natural compression totally eliminates piezo quack. All the benefits of Graph Tech's patented String Saver saddles. Easy, plug-and-play installation, very little soldering required.
Replaces the inserts that support the strings in ABM bridges. Note that you may have to get holes drilled in your saddles and bridge for the ghost wires. This is a set of four saddles.