Roll It Around: 30 lbs dog food storage containers come with attachable casters so you have the option to have them off or on. Store it on a shelf or attatch the wheel to roll it from the storage area to your dog or cat bowl. Convenient Snap-Lock Lids: our livlab mker pet food storage container with lid features user-friendly snap-lock lids, ensuring that your pet s food stays fresh and safe from curious paws. The snap-lock design makes it easy to open and close, even with your pet nearby, and prevents accidental spills. Airtight Seal for Freshness: our cat treat storage bin includes an airtight sealing ring to help maintain the freshness of your pet s food and treats. This design keeps moisture out and ensures that your pet s food stays as fresh as possible.