These are NOT standard speaker-sized banana plugs. They're much smaller, and easily slide in and out of an audio plug.
They also have basically no way of mounting the wire to the plug. There is just a little tip at the end - perhaps you're supposed to solder to? Editors Note:
There are different size banana plugs and you are correct, these may not work for speaker input. However we have sold tens of thousands of these plugs for test equipment and other uses. These fit our BJL-R, BJL-B, BP-R, BP-J and most banana jacks on test equipment.
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