Keep the contents of your open cans fresh! Made of durable plastic, these 3.5-inch diameter covers will fit the common, popular size of food cans. Easy to apply and remove, the lid can be used for securing and resealing a variety of different canned foods. Using Fox Run's Pet Food Can Covers makes dealing with leftovers a breeze: easier application and a tighter seal than using plastic wrap or tin foil. Especially great for preventing pet food from going stale and keeping your refrigerator from smelling like it! Control dog or cat food odors and prolong the shelf-life of leftovers.