CESS Terminal Binding Post Power Amplifier Dual Copper 2-Way Banana Plug Jack - 4 Pack 24k Gold plated.This connector is made by pure copper(Non-magnetic). Suitable for 4mm banana plugs. Color coded plastic insulation jacket, for easier recognition Width32mm L42mm.Screw Bolt Diameter 4.9mm Screws locking.No Soldering Double row copper hexagon gold-plated terminal