1Brass Alloy Construction: Enhance output efficiency and minimize noise with the output jack's sensitive and robust brass alloy material, ensuring an excellent performance with reduced interference. 2Convenient Strap Button Design: Easily connect to guitar or bass straps with the built in strap button design, providing a secure and easy connection for your instrument. 3Ideal for Acoustic Instruments: Designed for acoustic guitars and basses, compatible with passive pickups or active preamps and electronic devices, enhancing the performance of your guitar or bass significantly. 4Cylinder Jack with Three Mounting Screws: Featuring three installation screws and three pin jacks, allowing for stereo or mono connections, ensuring versatile connectivity options for your musical setup. 51/4 inch (6.35mm) Stereo Jack: Equipped with a 1/4 inch stereo phone jack, the endpin is compatible with most standard cables, making it easy to integrate into your existing setup with ease. 1 x Output Jack 3 x Screws