Description: This project is a set of three professional and practical circular spring cup connectors for 2-frequency speaker terminals, mainly made of durable plastic and gold-plated metal, and designed to be compatible with DIY speakers and subwoofer boxes. Gold plated contacts and spring terminals compatible with optimal signal transmission ensure tight and secure connections. Screw locking, easy to install, easy to use, 3 speaker terminals circular spring cup connectors will be sold together< Opening diameter: approximately 45 millimeters (1 7/8 inches); Overall diameter: approximately 75 millimeters (3 inches); Top installation depth: 20 millimeters (7/8 inches) 100% brand new and high-quality 2-way speaker box terminal connector with circular spring cup subwoofer plug. The terminal cup is compatible with the speaker and subwoofer box. The rear connection uses a quick disconnect connector. Positive (red) and negative (black) indicator lights to ensure correct wiring. Suitable for compatibility with 4mm banana plugs, spade terminals, or bare wires. Compact, reliable, and durable. Color: As shown in the picture Material: Plastic+Metal Attention: Due to manual measurement, please allow for a slight error. Please make sure you don't mind before bidding. 2. Colors may vary depending on the monitor, please understand. Hello, please pay attention to your shipping address when purchasing products. If your delivery information (such as name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly Packaging includes: 3 * 2 crossover speaker terminal binding