Safe and Eco-friendly： Collapsible silicone straws with the cases are made of food-grade silica, safe and healthy, non-toxic and BPA free checked to ensure that the material does not contain harmful chemicals Reusable and Durable： This straw is resistant to cold -40 to 230 Degrees Celsius, can be used in both cold and hot soup hot drinks. Good resilience can be fully recyclable, and you can use it for a long time. Easy to Carry: Each reusable silicone collapsible straw has a cute case and cleaning brush. That makes it simple to travel with you wherever you go. They can be placed in a backpack, pocket, bag, or briefcase so you can enjoy any drink anywhere.