WaterBrick Stackable Water Container: 1.6 Gallons of Liquids or up to 13 Pounds (127 Adult Servings) of Dry Foods. Made of rugged, high density polyethylene (HDPE) with an easy grip comfort handle. These unique water containers, unlike any other, can also hold food and other life essentials while adding value by cross stacking up to 4 feet for maximum efficient storage. Wide diameter lid opening with notched easy grip lid allows for an average adult to pull stored contents out of the container by hand. Stores water, food or anything you want to keep dry or store efficiently while eliminating most food odors. Meets FDA standards and BPA free. Product Specifications Size: 9" W x 9" L x 6" H (half the size of a standard 3.5 Gallon WaterBrick) Product Weight when Empty: 1.29 pounds Stacking Strength: due to 1 interior conical reinforcement columns Interlocking Strength: they interlock using their male and female connectors Wide Lid Opening is 3 1/4'' in diameter - can fit average adult hand to reach inside Full rubber gasket creating a tight seal is included inside the lid Recommended Stacking Height: 4 feet Average wall thickness of container is approximately 3/32 of an inch (.090) Meets FDA standards and BPA free