Fits for standard 13/32 inch (10mm) peg holes. Keep your electric guitar always in tune. 6 pcs locking string tuning key, compatible with ST electric guitar. Auto Locking Tuners (Tuning Pegs). Heavy duty internal gear. Gear ratio 1:18, reliable for easy, smooth and precise tuning. Made of metal alloy material, with chrome plated surface, hard, durable and wear resistant. High-quality tuning pegs designed for electric guitar. Selected material and concise appearance, precisely crafted, it provides accurate and stable electric guitar tuning. Note: Size and color may be slightly different because of manual measurement and different light conditions. Thanks for understanding. Specifications: Type: 6 Left/ 6 Right/ 3 Left 3 Right (Optional) Surface: Chrome Plated Material: Metal Alloy Package Size: 15 * 10 * 5cm / 5.91 * 3.94 * 1.97in Package Weight: 230g / 8.11oz Package List: 6 * String Tuning Key 6 * Ferrule 6 * Threaded Bushing 6 * Mount Screw High-quality tuning pegs designed for electric guitar. Selected material and concise appearance, precisely crafted, it provides accurate and stable electric guitar tuning. Note: Size and color may be slightly different because of manual measurement and different light conditions. Thanks for understanding. Specifications: Type: 6 Left/ 6 Right/ 3 Left 3 Right (Optional) Surface: Chrome Plated Material: Metal Alloy Package Size: 15 * 10 * 5cm / 5.91 * 3.94 * 1.97in Package Weight: 230g / 8.11oz Package List: 6 * String Tuning Key 6 * Ferrule 6 * Threaded Bushing 6 * Mount Screw