Premium Material Motion Sickness Glasses: These glasses are crafted from TPE material, offering superior toughness and oxidation resistance. They are durable, lightweight, and made of a comfortable plastic. Lightweight and Portable: Lightweight, portable, and compact, these glasses are perfect for travel and can easily be carried in a car. Shakeable Liquid Design: The blue liquid moves multi-directionally, allowing your eyes to perceive motion while your inner ear senses stillness, reducing nausea. How to Use: If you experience motion sickness in cars, planes, or boats, focus on a stationary object (like a book or phone) while wearing the glasses for 10-14 minutes to alleviate discomfort. Perfect Gift: Suitable for all head sizes (simply adjust the flexible frame), these glasses make a thoughtful gift for family and friends. Product Details: Item Type: Motion Sickness Glasses Material: Plastic, TPE Design Principle: The liquid level in the rings changes with vehicle movement, creating an artificial horizon to synchronize your eyes and balance system. Application: Suitable for adults and children, men and women, to help alleviate car sickness symptoms.