Masterseal Eco is a storage container made in Germany, with 50% of its materials being certified renewable. This durable storage container seals tightly, so you don't have to worry about food leaking in your bag or backpack. It is easy and convenient to clean in the dishwasher after use, saving time and making it easy to keep it clean and fresh. Additionally, you can heat food in the lunch box in the microwave, making it a great choice when you want to heat meals quickly and conveniently. Environmentally friendly storage container, with 50% of materials being renewable. Dishwasher and microwave safe, also freezer safe up to -40°C.