Feature: Banana hole for connections of amplifiers, speakers, mixers, microphones, etc. Suitable for 4 mm banana plugs and speaker connectors. High-quality gold-plated materials for maximum signal transmission and durability. Easy installation of the cables thanks to screw connection on the back. Excellent conductivity, resistance to insertion, oxidation resistance and durability thanks to high-quality gold-plated materials. Specification: Part Name: Single connection terminal Color: Red, Black Material: Zinc alloy, Plastic Size: Total length 48.6mm Plug-in life: 1000 times Electroplating process: Gold plating Scope of application: Audio amplifiers Total length 48.6mm, 5mm wiring screw inside the panel, 6mm external tightening screw (3.5mm through hole on the screw), 4mm diameter of the tail hole (can be plugged in 4mm plug or wire), D-shaped panel opening 11mm*12mm Package content: 1 Pair Single connection terminal Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of standard material, quality assurance and practicality. Perfect function, bring you a wonderful experience. Every customer is entitled to a 30-day refund or replacement for damage/quality issues. If you have any questions, please feel free to contact us and we will solve it for you. 1Pair 4Mm Audio Speaker Binding Postterminal Black Red For Banana Socket Adapter