ITEM NAME:DIY 4-Way Speaker Box Terminal Binding Post Screw Cup Description: The item is a set of 1pcs professional and practical 4-way speaker terminal Square connectors, which is mainly made of durable plastic and gold-plated metal, and designed for DIY speaker and subwoofer boxes. Gold-plated contacts for optimal signal transfer, and spring terminals ensure a tight and secure connection. It is easy to install with screws locking and easy to use. Color: mainly black. Material: durable plastic, copper and gold-plated metal. Terminal cup for speaker subwoofer boxes. Gold-plated contacts for optimal signal transfer. Screw type terminals ensure a tight and secure connection. Rear connections use quick disconnect connectors. Positive (Red) and negative (Black) indicators to ensure proper wiring. Package Includes: 1 Piece 4-Way Speaker Square Box Terminal Binding Post SKU: ALU0023532768002198.It is easy to install with screws locking and easy to use. Rear connections use quick disconnect connectors. Positive (Red) and negative (Black) indicators to ensure proper wiring. Color: mainly black.