Sperzel locking tuners in light green and gold from @sperzel_guitar_tuners on an in progress SF3co headstock. FSC Certified Maple and paperstone. #sperzel #sperzeltuners #sperzellockingtuners #guitartuner #anodized #goldplated #maple #paperstone #scottfrench #sf3 #sf3co #ecoguitar #fsc #fsccertified