Meet Your Use Demands: The sandwich container is made of food grade silicone material which is safe, odorless, BPA free and reusable. The sandwich box containers has three snap-on lids for a tight seal and longer freshness. Great For Lunchboxes: Shaped like bread so they fit your sandwiches perfectly for lunch, dinner, or picnics. But you can put fruit, vegetables, desert, snacks, etc in to keep them separated in your lunchbox or cooler. Leakproof Locking Lids: Silicone lunch container has simple snap-on lids that are easy to open and close. The soft silicone lids are removable for easy cleaning, and the soft shell snap-on silicone food storage containers come with hanging holes designed for easy storage and draining. Dishwasher-Safe: Our box for sandwich is made of durable high quality 100% food safe BPA free plastic. This lunch sandwich container pizza slice container is safe to use in refrigerator, freezer, dishwasher. Microwave & Freezer Safe: Mainly Made from food grade silicone while the lids are made of high quality plastic. You can pull up the air vent on the lid, and heat your lunch by microwave. Or you can store the leftover food in the freezer. You don't need plastic wrap any more, which is not environmentally friendly.