FoodBrick Stackable Food Storage Container: 3.5 Gallons container holds up to 27 Pounds (264 Adult Servings) of Dry Foods. Made of rugged, high density polyethylene (HDPE). These unique food containers, unlike any other, can hold food and other life essentials while adding value by cross stacking up to 4 feet for maximum efficient storage. FoodBrick can interlock and stack with WaterBrick making it a unique water and food storage system; unlike no other. FoodBrick provides an air tight and moisture resistant seal. Stores food or anything you want to keep dry or store efficiently while eliminating most food odors. Handle sold separately if needed. Product Specifications Size: 9" W x 18" L x 6" H (shaped like rectangular blocks) Product Weight when Empty: 2.12 pounds Stacking Strength: due to exterior reinforcement columns (no interior columns for easy bag storage) Interlocking Strength: they interlock using their male and female connectors (cross stack for safety) Wide Lid Opening is 7.25" x 4.5" lid opening to easily get bags of food in and out or to use a scoop Air Tight Moisture Resistant Sealing Gasket Recommended Stacking Height: 4 feet Average wall thickness of container is approximately 3/32 of an inch (.090) Meets FDA standards, BPA free and a Food Grade Container