DURABLE - Locking tuners prevent gears from being exposed to air and reduce rust, making them more durable.EASY TO INSTALL - Guitar tuners come with screws, bushings, and ferrules for easy installation.DOES NOT SLACKEN - The tuned guitar string does not easily loosen.TUNE GUITAR ACCURATELY - With these tuning pegs, you can tune guitar strings quickly and accurately.PREVENT SCREW SLIP - High-quality internal gear, effective in preventing screw slip.Locking tuners prevent gears from being exposed to air and reduce rust, making them more durable. Comes with screws, bushings, and ferrules for easy installation. The tuned guitar string does not easily loosen. With these tuning pegs, you can tune guitar strings quickly and accurately. High-quality internal gear, effective in preventing screw slip. Suitable for conventional sizes of acoustic and electric guitars.Condition:Weight: 168g / 5.9ozTuning peg size: 4.3 * 3.8cm / 1.7 * 1.5inFerrule outer diameter: 1.4cm / 0.6inSuitable for 1cm / 0.4in diameter holesColor: goldMaterial: Metal + synthetic plasticPackage contents:6 * Guitar tuning pegsOnly the above package content, others are not included.Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3cm.