Durable and sturdy , the skin is smooth and clear.
Are safe to use on cups, dishes and bowls, as well as scratch-resistant they are. it not frostbite or scald your hands,no matter how cold or hot the water is
Easy to clean and reusable,Great for hiking, mountain hiking, camping, lake fishing, construction site lunch or picnicking,
Safe for non-stick surfaces, , safe, healthier, eco-friendly. It can put on disinfecting cabinet to use Ozone to . it can't heated by microwave