Fits all Fender basses with reverse tuners - Marcus Miller, many AVRI basses ('62 Jazz and Precision) and the '51 reissue. Same dimensions as Hipshot HB3. Much smoother than Fender's tuners, and the rear mounting surface is flat-no lugs protruding out. Made in Japan. In great shape. $50 shipped in USA. PM your email address and I will send a Paypal invoice. Check out my stellar TB feedback!