Pickles. They just look unsymmetrically balanced. It's the type of balance that's balanced because it's all over the place and irregular.
I looked up 'balance' on dictionary.com and this is what came up: "A harmonious or satisfying arrangement or proportion of parts or elements, as in a design."
In regards to the pickles, their arrangement is 'satisfyingly' random. The picture itself is also clear and sharp that the pickles look like perfect ovals, arranged irregularly.