1.UNIQUE VARIED SIZE DESIGN: This dog food container is designed to be collapsible that can be adjusted the size as you need. When unfolded, it can hold about 20lbs of dog food or 30lbs of rice. When folded, it can hold about 6lbs of dog food or 10lbs rice. You can collapse and store it when food is low. 2.EASY to MOVE AROUND: The food storage bins come with attachable casters so you have the option to have them off or on. Put it on a shelf or attach the wheels to move around when storing it away with heavy food inside. 3.CLEAR FLIPTOP LID: The clear view window allows you to check the food level in just one glance. The closure makes it easy to open and close. The top access door is kept shut with small magnet, keeping the food fresh as the food is stored. 4.BPA FREE and AIRTIGHT: Dog and Cat Food Storage containers made of foodgrade, durable BPA silicone and plastic. With four strong snaplock latches and silicone seal inside the cap. Keep out of pests and moisture and prevent rodents eat your pet food. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.