The MASTERSEAL TO GO keeps food fresh longer thanks to the freshness seal. It is also 100 % leak-proof, hygienic and safe. 100% mobile : with pratical inserts and additional functions, they adapt to every kind of use. Compatible microwave, freezer and dishwasher safe. Perfect for transporting salads. With separate inserts for toppings and dressing. Longer-lasting freshness, 100% leak-proof, 100% hygienic: no gaps – no germs. 100% safe: even certified for baby food. BPA-free. Microwave safe Freezer safe Dishwasher safe