This product is a speaker terminal, made of solid materials, safe and durable. It without being easily damaged. The product is an excellent speaker terminal that can bring you more convenience, allowing you to have comfortable experience. Features -Color:Black -Material:ABS, zinc alloy -Size:8.00X8.00X3.80cm/3.14X3.14X1.49in -Size:6.50X6.50X3.50cm/2.55X2.55X1.38in Square size: 80mm/3.1 inch Hole diameter: 65mm/2.6 inch Wall screw hole distance: 60mm - This speaker box terminal is easy use, quick connect and disconnect, easy to install and use. - The back requires spade connectors, mini spade connectors, or direct soldering of speaker wire. - Note: Rear connections use quick disconnect connectors. Positive and negative flags to ensure proper wiring. - Replace your old or broken speaker terminal with a new one. - Characterized by a sturdy and reliable texture, not easy to break, serving you for a long time. Package list: 2 x speaker boxes