Motion sickness glasses

Brand: Hion
Item Weight: 35 grams
Item Features: Motion Sickness Relief
Item Quantity: 2
Item Shape: Band
Usage: Full Body
[Motion Sickness Glasses] Effectively prevents most motion sickness. Can be used in many situations such as buses, cars, trains, ships, airplanes, 3D and VR games, and high-rotation games. Foldable, detachable anti-nausea glasses.
[TPE Material & Nose Pad] Made of environmentally friendly TPE material, it is durable and can be bent freely. It is super lightweight at only 35g, so it won't put a strain on your nose. The nose pad prevents the glasses from slipping off and is durable and sturdy.
[Anti-Motion Sickness Principle] The liquid inside the frame of the glasses sways between the front and sides of your face, recreating the horizon line, reducing discomfort between your vision and your vestibular system, and alleviating motion sickness. Ideal for treating car sickness, dizziness, and headaches.
[How to Use] When motion sickness occurs, put on the glasses and fix your gaze on something stationary, such as a smartphone or book. After 10-12 minutes, your visual information and vestibular system will synchronize, and you will feel better. The effect lasts even after you remove the glasses.
[Convenient to Carry] Effective for 95% of motion sickness symptoms. The lens-free design allows them to be worn with regular glasses or sunglasses and can be shared with family and friends. Comes with a storage pouch, making them convenient to carry for travel, business trips, or outings.

I purchased these online a few years ago after they were featured on Zip. I have used them a few times.
There are no noticeable major stains.
The case has some pilling.