SOLD!!! A set of 5 Jackson-branded tuners (probably made by Schaller); black, Y keys, 3/8" posts, and they work fine with no issues. Bushings, washers, and screws are included. 5-in-line config, not reversible, but you can easily install one or two "upside down" for 4+1 or 3+2 configs. $20 shipped.