Features: Package comes with 6pcs guitar string locking tuners including 3L3R. Great replacement for old broken tuning pegs of both electric and acoustic guitars. Keep your guitar on tune and easy to tune; also can be installed very easily for newer. Made of alloy metal providing long durability; with heavy duty internal gear. brand new and testing is fine. Specifications: Material: Alloy Metal Color: Silver/ Black (optional) Item Size: Refer to picture for detailed size Item Weight: 40g / 1.41oz (single one) Package Size: 11 * 8 * 2.5cm / 4.33 * 3.15 * 0.98in Package Weight: 243g / 8.57oz Package List: 6 * tuning pegs 6 * ferrules 6 * mounting screws