The SnapLock Collection by Progressive consists of stackable, leak-proof containers that are great for the home, office and on-the-go.These containers are the perfect food containerfor storing and transporting lunch kits with the main container perfect for salads, pasta, ect... and the top tray with sections for snacks, toppings and so much more. It is designed with a silicone seal and locking clip that creates a leak-proof seal making for safe storage and transportation. It is made from polypropylene and silicone and is BPA and phthalate free, dishwasher safe, freezer safe and microwave safe (clips must be unfastened before microwaving). Available in assorted colors. (Not available in clear box as shown.  Only blue, mint green, and white available.)