Features: Electric guitar Locking tuners can helps you to fast, smooth Tunings and keep your guitar keep in tune. Suitable for most acoustics guitar and electric guitar. Locked design to prevent accidental loosening of the strings. Ensure playing stability and performances comfort. Accurate Tunings and pure sound quality. Black appearance, fashionable and unique. Suitable for various occasions, such as performances, exercises, recordings, etc., providing stable pitch and comfortable feel for guitar performances. Specifications: Materials: Metal Styles: Right/Left Color: Black/Silver/Gold Size: about 5x6x5cm/1.97x2.36x1.97inch Package Includes: 1pc Guitar Locking Tuners note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.