Features: 2 Way Speaker Box Terminals offer durability and excellent impact resistance, making for long use in both home and professional sound systems. from friendly ABS plastic and Coppers posts, this Terminals fit seamlessly into various without occupying much space. for audiophiles, DIY enthusiasts, and professional lookings to upgrades or replace their existing speaker connection. for sound setups, including home theaters, music performances, and recording studios, ensuring application across different sound systems. With gold plateds contacts for signal transmission, this speaker binding post to minimize resonance and enhanceds sound claritys, making it essential component for superior sound qualitys. Specifications: Materials: Plastic+Metal Diameter: 75mm/2.95 inches Opening: 49mm/1.93inch Package Includes: 1PC Speaker Junction Box note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid Due to the differences between different monitors, the picture may not reflect the actual of the item.