Our Jonas lunchbox is here to revolutionize your midday meals. With its break-free detachable lock, you can safely secure your scrumptious snacks while turning heads with its sleek design. Say goodbye to boring luncheon hours and hello to tasty meals! 1. This product includes a set of four containers with bag. 2. The set includes 2 containers of 310 ml each and 2 containers of 390 ml each. 3. This container is made of borosilicate glass with lid having break-free lock. 4. The bag is made of waterproof fabric and is thermal insulated with strong zippers and adjustable strap. 5. This containers are dishwasher & microwave safe. 6. The containers are airtight.