UNIVERSAL SIZE--These pet food can covers fits most standard size canned dog and cat food, such as 3 oz, 5.5 oz, 12 oz and 13.2 oz^EXCELLENT AIRTIGHT--These can lids are made of silica gel which is very soft and flexible,allow to fit snugly and grip the rim of the cans giving a good seal. Keep food fresh longer and and prevents the fridge from smelling like pet food.^SAFE and NONTOXIC--These dog and cat wet food can lids are Made of 100% Premium Silicone at food grade,BPA free,safe and nontoxic,could restore with food long time with no harm.^EASY to USE--Quite flexible and pliable, easy to pull on, and they have a little handle with bump den for easy removability.^DURABLE - Silicone constructed lids will not crack, melt, or warp. Durable than plastic can covers. Covers withstand temps up to 450F. Dishwasher Safe.^