If you're looking for an airtight pet food container that would last a lifetime, I recommend Simplehuman's Pet Food Cans. 

These cans are so functional and stylish, and I can't think of a single negative about them. 

The can features a lock-tight handle to prevent even the smartest and most mischievous pet from getting to the food storage. 

The locking mechanism works very smoothly and easily for humans, and the handle snaps shut, creating airtight storage. 

Another thoughtful touch is the magnetic lid-mounted scoop. 

How ingenious is this? 

The scoop attaches to the lid magnetically, so it doesn't get mixed in with the food. 

Your hand stays clean and mess-free! 

The cup also doubles as a measuring cup, and the cup has measuring marks. 

The marks may be a little hard to see from the picture because it has food crumbs, but the scoop has measuring marks for a cup and half a cup. 

Once done, the scoop attaches to the lid! 

The can provides an airtight seal, thanks to a silicone gasket around the can. 

The kibble stays fresh and crunchy until the last scoop. 

I keep my cans in the closet by the kitchen. 

The wheels on the back make it easy for me to drag the cans out without damaging the floors. 

Simplehuman's Pet Food Cans come with a 10-year warranty, but these will last a lifetime! 

The stainless steel body is fingerprint-proof, so it won't leave any marks like other cheap stainless steel products. 

I seriously love my pet food cans.