Usage Tips:Features: 1. Made of metal material, durable and long service life. 2. The inner diameter of jack is 6.35mm which can be mounted on the panel. 3. Easy to install, convenient to replace the old or broken one. 4. The parts are tightly connected and will not be easily loosened. 5. Suitable for electric guitars and basses. Specifications: Condition: 100% Material: Metal Optional Color: Black, Chromium Screw Hole: 1/4" (6.35mm) Size: Approx. 25.5 x 48mm / 1.0 x 1.9inch Screw Hole Spacing: Approx. 38mm / 1.5inch Weight: Approx. 16g Package List: 1 x 6.35mm Jack 2 x Screw 1Made of metal material, durable and long service life. 2The inner diameter of jack is 6.35mm which can be mounted on the panel. 3Easy to install, convenient to replace the old or broken one. 4The parts are tightly connected and will not be easily loosened. 5Suitable for electric guitars and basses.