Boost your brand when you give out this to customers!This lunch box is made of food-grade Silicone material,FDA Approved and BPA-Free, Non-toxic and odorless, no harmful to human health,Also which is durable and reusable for thousand times, the lid is made of strong polypropylene for resistant of high temperature. These containers can be collapsed down to 1/2 of their height.It won’t occupy much room in the refrigerator ,microwaves,and you can put it even in your schoolbags when you take bento lunch to school. This is perfect solution for a wide range of foods storage, you can choose the size to take bento lunch,fruits,or any snack,etc. to school ,office,or outdoor activities.A customized logo is available.Great ideal for business,conference,office,meeting,working,restaurant,school,test field,business travel and many more! Measuring 33oz, this custom food-grade silicone foldable lunch box. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Portable, durable, practical for daily use.