One of the things with many online sellers, PARTICULALLY electronic component vendors is they often have one photo for an entire range of parts but the way their website is structured does not make this at all clear.
the metal of the rings is very thin for a large, stiff cable. I would be a bit worried about the ring breaking off if you moved the appliance or tugged the cable, unless it is well-clamped into position and the cable dressed to shape first. The copper tube lugs are much stronger, but need a bigger crimper.
edit
oops, sorry, you mean the in-line connector? the yellow is for 6mm.
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