Features: The 2 Way Speaker Box Terminals for Sound performances, featuring ABS exterior and Coppers posts for superior conductivity and durability. This Terminals cup boasts with 4mm thick base plate to minimize resonance, ensuring clear sound transmission. for audiophiles and DIY enthusiasts, this product supports various connection types, including direct wiring and banana plugs. for diverse Sound such as home theaters, music performances, and recording studios, it meets the needs of both professional and personals sound systems. With its sleek black finish and easy installation, this speaker Terminals box enhanceds your Sound equipment's functionality while maintaining elegant appearance. 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.