I've never seen any wheat grains like some of the comments mention; the kibbles are big and flat, but that actually lets my cat chew them instead of just swallowing—it's great! My cat digests them really well.
My cat can't digest these kibbles. He vomits as soon as he eats them.
The kibbles are way too big. I stopped giving them to him after 2 days. I don't recommend these kibbles.