I tried the Three Piece Remington Airtight Container Combo. Setup was simple, just push the wheels into the bottom and you are done. The smaller container rests in a grove on the top of the larger container. This makes moving the unit simple. The combo containers came with a scoop that was very handy. I put dog food in the lower container and cat food in the upper container. I can feed my two dog and cat all at the same time, and the food stays fresh. I would recommend this 3-Piece Remington Airtight Container Combo.