This is from a project that was never realized--now it's surplus. It's the basic GraphTech kit, plus the 4 peizo pickups, plus the special Hipshot bridge, made to accept the peizos. The peizo option will open a large new door to a different sound from your bass, and you don't have to give up or compromise anything else that you have onboard already. The kit is complete and has never been installed. Included is the instruction book and I additionally printed a larger version of it for workbench use. List price of these three components is $420.95. To you, payment via PayPal, $295 shipped CONUS.