Guitar Machine Head Tuners, Metal, Silver Description Durable metal tuning pegs for stringed instruments. These machine heads provide stable tuning, solid build quality, and a complete mounting kit for easy installation or replacement of worn tuners. Finished in silver with compact dimensions for a neat fit. Key features Material: Metal construction for durability and long service life. Color: Silver. Size: 3.9 x 2.8 x 3.8 cm per machine head. Package includes: 12 x Machine Heads 12 x Ferrules 12 x Threaded bushings 12 x Screws. Listing notes: Size listing includes mediumx2pcs; Color listing includes Silverx2pcs. Function: Secure string anchoring and precise tuning adjustment to improve tuning stability and string performance. Installation: Supplied ferrules, threaded bushings, and screws simplify mounting and replacement. Compatibility: Suitable for electric guitar, acoustic guitar, ukulele, and similar stringed instruments. Benefits Improved tuning stability: Precision gears and a sturdy metal body help prevent slippage and reduce the need for frequent retuning. Ready to install: Complete mounting hardware included so you can old or damaged tuners quickly. Reliable replacement: Ideal for repairing or upgrading instruments with worn or broken tuning pegs. Use scenarios worn tuners on an electric guitar during maintenance or restoration. Upgrade an acoustic guitar to achieve more stable tuning for recording or live performance. Fit tuners on a ukulele or practice instrument to damaged pegs and restore reliable tuning. Notes Slight variations in color and size may occur due to lighting, monitor settings, or manual measurement.