Keep Warm/Cold: These little lids suction on to your cup and keep your drink warm or cold.
Keep Bugs out: These silicone lids keep dust/ fur/ fruit flies out of your cup.
Prevention of Splashing: The lids prevents liquid from sloshing out of the cup when you're working or in a moving vehicle.
Exquisite Design: Beautiful and bright color, full of vitality, fashion and beauty, more durable.