QitinDasen 40Pcs Premium 4mm Banana Plug Socket Connector Kit: 20Pcs Nickel Plating + Binding Post Terminal, for Speaker, Audio / Video Receiver, Amplifiers Systems (Red & Black)

〓 Banana plug connectors are nickel plated to resist corrosion. Binding posts is made from high quality alloy of good electrical conductivity and insulated with ABS plastic. 〓 Screw connector fitting, secure the wire in the adapter without the need of soldering. 〓 The banana plug makes it easy to install the speaker wires and ensures that the speaker wires are more closely connected to the speaker or audio receiver binding post terminals. 〓 Binding posts allow the connection of several different types of connections such as banana plugs or pin connectors. 〓 Totally 2 colors that you can use for color-coding: red commonly means an active or positive terminal; black indicates an inactive or negative terminal.