The silicone lid fits overtop of the cup and snugly and securely grips the outer surface of your cup to help reduce leaks and spills. Straw hole + plug included on every lid.

Safe for the microwave, dishwasher, freezer & more. They can hold hot & cold beverages. Avoid spills with the insane no-slip base. It will not break, crack, chip, dent, fade or scratch.