Check the listing for details. 6 Set Amplifier Binding Post Banana Female Terminal Socket M4 Black Red. Condition: New. Listed at 15.61 USD. About the product:This binding post is widely used in various types of industrial control equipment. It is a great signal connection for electrical projects such as speakers, battery boxes, and subwoofer.Good choice for you:Made of pure copper and insulating plastic, the terminal binding post is durable, and provides a long service life.You can replace the screw-down type with this connector and it will fit the existing terminal cup.Specification:Material: Copper, ABS PlasticColor: Black, RedThread Diameter: M4Dimension: 12 x 8mm / 0.5 x 0.3 inch (L*D) In the package of: 6 Set x Speaker Terminal (6 Red 6 Black)Easy to install:Strip 6-8mm of insulation from the wires. Insert the exposed wire into the inside of the terminal. Tighten the top screw with a screwdriver.Tips: Please make sure to power off before wiring.