The item is a set of 6pcs 2-way speaker box terminal cup connector square copper speaker binding post screw terminal banana plug and plugs subwoofer jacks DIY home speaker kits home stereo speakers car stereo DIY, and designed for DIY speakers and subwoofer boxes. Subwoofer speaker box terminal block. Gold-plated contacts for optimal signal transfer. Speaker box terminals ensure a tight and secure connection. Rear connections use disconnect connectors. Positive (red) and negative (black) indicators to ensure correct wiring. Easy installation with screw locking and easy to use. Suitable for 4mm banana plugs, spade terminals or . Compact, reliable and . Color: Black Material: Plastic, Copper and gold-plated metal. Total Diameter: about 80mm (3.2in); Cutout Diameter: about 60mm (2.4in); Top Depth: 20mm (0.8in). Package Including 6 * 2 Way Speaker Terminal Box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color