Feature: 1. Locking tuning key can prevent the gears from being exposed to the air and reduces rust. 2. With these tuning pegs, you can tune guitar strings quickly and accurately. 3. The handle is frosted and feels more comfortable when tuning, suitable for acoustic guitar, electric guitar. 4. Comes with screws, bushings and gaskets for easy installation, make the tuned guitar strings not easy to loosen. 5. High‑quality internal gear can effectively prevent the screw from slipping, practical and durable. Specification: Item Type: Guitar Tuners Material: Metal Location: 3L3R, heavy internal gear Style: Sealed gear adjustment pin Application: Suitable for acoustic guitar, electric guitar Package List: 6 x Guitar Tuner 6 x Screw 6 x Bushing