Gotoh SDS510-HAP nickel tuners set 6-in line left side (for right hand guitars), with 05M oval buttons, ratio 1:15. SDS510 tuners has Kluson style housing used on vintage Fender guitars. HAP means Height Adjustable Post for each tuners by hexa wrench thru housing. It means better strings breakage angle at nut without use of strings guide. Gotoh order number: SDS510-HAP-05M-N-L6