1、DURABLE MATERIAL: Guitar locking tuners are made of metal material, ensuring durability and longevity, making them a practical choice for musicians 2、COMFORTABLE HANDLE: Ergonomically designed tuning plugs provide comfort and ease of use so that musicians can use them comfortably, useful and practical 3、GUITAR TUNING TOOL: The tuning pegs operate smoothly and enhance the overall experience, ensuring stable and accurate tuning so that they can be use accurately to achieve the desired sound 4、SAFE TO USE: The locking mechanism of the tuning peg enhance safe and reliability, ensuring that the strings remain in tune and the instrument remain safe during use 5、APPLICABLE MODEL: Contain 6 left hand tuning heads for most old for Strat Tele or some acoustic guitars(left hand), fit well and you can use with confidence 6 x Guitar Tuning Machine Heads6 x Screws6 x Bushings Item Type: Guitar Locking TunersMaterial: MetalApplication: For most vintage for Strat Tele or some acoustic guitars(left hand)