Each tin comes with its own little plastic lid to close it if you don’t use it all at once. Considering the pollution caused by plastic, and the fact that I’m perfectly capable of washing a lid (plus my cat finishes the tin in one go), one lid would have been enough.
My 14-year-old cat with CKD really likes it. However, I filter out the pieces of chicken so she doesn’t eat them, because I feel like she chokes on them.