Lock Lock Slender Food Storage Container with Leak Proof Locking Lid, 4.6-Cups, 37 Fluid Ounce Excellent airtight and watertight Microwave, freezer & top rack dishwasher safe Patented hinge locking system with silicone sealing ring eliminates leaks and spills Stackable feature saves space in your pantry and easy to use Made from highest quality bpa free material for strong durability and safety