PLEASE NOTE: This is for a jazz bass with a side mounted jack. $75 plus flat rate priority mail to U.S. only. Paypal only. Item description here: http://www.audereaudio.com/scripts/prodview.asp?idProduct=60 Black knobs. Includes capacitor kit. Instructions can be downloaded on link above. Briefly installed in Fender Select Active Jazz. Decided to go back to stock preamp so that the bass can be traded in.