Feature: 1. The fixed tuner prevents the gear from being exposed to the air and reduces rust, durable. 2. These tuning pins can tightly fix the strings, allow the guitar to maintain the pitch to improve playing pleasure. 3. Equipped with screws, easy to install and remove, the tuning guitar strings are not easy to loosen. 4. Applicable to almost all acoustic guitars and electric guitars, you can quickly and accurately adjust the guitar string. 5. High‑quality alloy material, have a long service time, can replace old, damaged tuning pegs. Specification: Item Type: Guitar Locking Tuners Material: Alloy small handle, A3 steel plate, free-cut iron string and copper gear combination Colour: Black Features: Divide into left and right. Package List: 6 x Guitar Locking Tuners6 x Screw