Features: Brand New These binding posts are made from high quality alloy of good electrical conductivity and insulated with ABS plastic Total 5 colors that you can use for color-coding, for example: red commonly means an active or positive terminal; black indicates an inactive or negative terminal, etc. Binding posts allow the connection of several different types of connections such as banana plugs or pin connectors Commonly used on electronic test equipment to terminate (attach) a single wire or test lead. They are also great connectors on loudspeakers and audio amplifiers as well as other electrical equipment Specifications: Material: Alloy Color: Red, black, yellow, green, blue Suitable for 4mm Banana Plug Socket Diameter for Banana Plug: 4mm Overall Length: 43mm Quantity: 5 Pcs Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 5 Pcs x Banana Plugs