JS-555M8 8MMCopper Posts Terminal Binding Post Blocks Power Supply Terminals Welding Machine Inverter Post Connector Features: The product is new and has premium quality Made of high quality pure brass, ensuring the highest quality audio with no distortion Easy installation with screws locking and easy to use Black and red color for maintaining proper polarity Th is post connector is flexible and suitable for 5/16'' stud cable connection or extended jumper Durable and convenient to use Applicable to speaker wiring column, solder-free socket and connector Specifica tions: Item name: M8 copper post terminal binding post 3 Types: Red, Black, Red+black Model: 55 Material: Pure brass Outer diameterof screw shaft: 8mm/M8 Suitable for 5/16'' stud cable connection or extended jumper Pack ing includes: 1 x Red terminal binding post (PC) OR 1 x Black terminal binding post (PC) OR 1 x Red terminal binding post (PC) 1 x Black terminal binding post (PC) Notes: Transition: 1cm=10mm=0.39inch There may be some slight dimensional deviations due to manual measurement, different measurement methods and tools Due to the different light, the angle and the display, the images may not reflect the actual color of the project, please make sure you do not mind before ordering, thank you