These have been on a couple of basses, my old Rickenbacker 4005WB, and my former Fender California Precision Special, which is how they are currently set up. Included are both the cloverleaf and Y keys so you can set these tuning keys up how ever you'd like and they are easily changed over from 4-in-line to 2-to-a-side headstocks. Some wear on the cloverleaf keys and on the posts from strings. Very good to excellent overall condition. No mounting screws or hex wrench, just what is pictured. No trades. Sold as a complete set, only. $80.00 Price includes shipping to CONUS, only. Specs are available here.