YWBL-WHSpeaker Connectors Banana Plugs 20 Pcs/set 2MM Mixed Colors Plug Jack Test Probes Connector For Amplifier Brass, Connector

too small to be effective, no idea how you would connect a wire to it without an electron microscope

Used these banana plugs in my model railway instead of the Marklin brand ones which are more expensive.These do the same job but you have to solder them as opposed to the Marklin ones which are screw fixed.