Supply by Sewell Direct proved no problem. Top marks there.
The product itself is also top notch. It doesn't look anything like a banana - but then it's certainly no lemon! Just by looking at it, you know this plug is going to do its job well. It looks damn good too, with the metal body being machined from solid. Pick it up and you get a sense of quality. Chunky, functional but elegant. You'll be disappointed that it fits round the BACK of the speaker !!
Forget the old style flimsy, plastic body with tiny screw to supposedly clamp your cable firmly in place. This baby doesn't even require a screwdriver. Bare your cable and feed it through the back end of the plug. Bend it sufficiently through 90 degrees to appear out of the hole in the side of the body and simply screw home the knurled locking screw at the back. Tug all you like and the cable won't slip loose. You could just feed the bared cable from the hole in the side if you had reason to. You'll also find that the plug fits tightly into the speaker socket.
Solid contact with the cable means solid sound from your speakers.
It copes with a good, thick cable too.
Enough said - if it's a banana plug you want, don't buy any other. Happy listening !