Lock & Lock Stackable Airtight Container with Interlocking Flaps and Silicone seal. (Only one cover with 3 stackable containers.) Space saving interlocking system with one cover and three stackable containers. The two bottom containers are covered by the container above it. Fully airtight and watertight Dishwasher and microwave safe Each of the three containers hold 1 liter or 34 ounces Ideal for storage of both dry and liquid contents