No fruit
These are cups that have a red design on the outside that makes whatever shake was originally inside the cup look like it contained bits of red fruit. Of course, this was all a lie, and you were tricked once again into buying a product with false advertising. A clever use of color can make anything look real.
These cups even have images of strawberries on the top to add to the illusion. When people buy this and realize there are no strawberries or fruit inside, we wonder how they react. Do they say something or just brush it off and go about their day, we would be too upset to let it go.