Features: Terminals cup for speaker subwoofer box. Suitable for 4mm banana plugs, spades terminals or bare wire. Gold-plate contacts for optimals signal transfer. Screw type terminals ensure a tight and secure connection. Rear connection use quick disconnects connectors. Positive and negative (Black) indicators to ensure proper wiring. Gold-plate contacts for optimals signal transfer, and spring terminals ensure a tight and secure connection. It is easy to install with screws locking and easy to use. The item is a set of professional and practical 2way speaker terminals round spring cup connectors, and design for DIY speaker and subwoofer box. Specifications: Item Type: 2Way Speaker Box Terminals Cup Material: ABS Size: 57x57mm/2.2x2.2inch Color: Black+Gold Quantity: 1Pc Package Includes: 1pc 2Way Speaker Box Terminals Cup note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.