Pakkon 3 Compartment Bento Box with Airtight Lid, 10 Pack Practical Compartments, the compartments make great portion control containers and meal plan; good to use for meal prep for weight loss; store anything from food like sushi, to little screws and small toys to keep organized Plastic Lid; the lid is clear so that you can see exactly what lies inside of the bento box; no more dirty, wet, melted paper bags; the lid is airtight so that anything you put inside will not leak; excellent kitchen containers for everyday use Portable and Convenient, take it to work, school, or on outings and picnics The food storage containers are made of safe polyproplyene, BPA FREE making them eco friendly Dishwasher, microwave, freezer safe; engineered for heat and cold resistance; thick walls can withstand up to 250f