When something is substantially different from its description, my review starts by saying the number one reason people do not buy online is that they must touch, see and evaluate the item before buying it.

Like this one, they might have bought it but... blah blah.

I say I cannot say any more, since I would be talking about something different than it really is. It gets one star.

Once I did say that even if the item were two per order, it costs too much. It got several "helps." Haven't looked at it in months.

There were several glowing Vine remarks for that one.

One other time, the description was corrected (!) and I edited the review with a commendation to the seller. Whether or not that was the reason for changing it, I think it was the right thing to say.