ITEM NAME:10pcs 4mm Copper Banana Plug for Test Probe Solder Connectors Description: - Brand new and high quality, gold plating design - Double screws locking, without crimping or soldering - Widely used to ensure a tighter connection of a speaker wire to the binding post in the back of the speaker or in the back of the audio receiver - Create your own high quality charger adapters with these gold plated 4mm banana plug connectors - The screw on the side physically secures the wire in the adapter while also ensuring electrical conductivity without the need to solder - Total length: Approx. 4.5cm / 1.77 inch - Diameter (Max.): Approx. 10mm / 0.4 inch - Metal Head Length: Approx. 34mm / 1.34 inch - Material: Metal + ABS - Color: Red, Black Package Included: 5 x Black banana plugs 5 x Red banana plugs.The screw on the side physically secures the wire in the adapter while also ensuring electrical conductivity without the need to solder. 5 x Black banana plugs. 5 x Red banana plugs. - Total length: Approx.