Terminal Binding Post Amplifier Jack Speaker Screw Cable Plug Black Red 1 Set

What is this?This amplifier terminal connector is made of copper ensuring higher audio with no distortion for speaker banana plug test probe connector

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METAL RHODIUM PLATED HIFI Speaker Terminal Long Binding Post for 4mm Banana Plug $20.43 - PicClick AU

How To Attach Wire To Back Of Binding Posts

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Free Welding Copper Terminal, 2 Pcs Copper Binding Post Terminal Black and Red 4mm Banana Plug Binding Post for Speaker

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Binding Post Speaker Amplifier Terminal Banana Jack 4mm 4.36x1.29 (Red)

Tech Tips: How to Connect Speaker Wire to a Binding Post