These work really great at sealing up an opened can of moist food. I just put one of these lids on the can and store it in my fridge for a few days. The larger cans of food tend to cost less than the smaller ones, so it is more economical to use a portion and then put a lid on it. They are sturdy and clean up wonderfully.

Pros: Unused moist food is kept fresh

Cons: none

I have several of these that we bought from Pet Smart when we fed our one cat wet food. It did preserve the food, but aluminum foil or saran wrap will also do the trick. These are cheap enough though to buy and use over and over again, rather than making more waste by throwing out aluminum foil or saran wrap.

Pros: cheap, keeps food fresh, variety of colors, easily washed

Cons: nothing

I've got a couple of these that I use after I have opened up a larger can of moist food. Usually, I use the food within a day or two of opening and being able to keep it closed up really helps. A must if one is feeding their animals canned food.

Pros: Keeps unused canned food fresh

Cons: none

These sturdy plastic can covers are a must for keeping unused moist food fresh. I buy the larger cans and can store them for a few days in the fridge. These lids snap on tight and keep things fresh until the next use.

Pros: Keeps moist food fresh

Cons: none

These are very useful. I use them instead of foil or plastic wrap. Easy to use and easy to clean. I use up the cat food in one or two days , but this keeps it well...and probably would for longer. I recommend them

Pros: very useful

Cons: none