1. Effective in relieving motion sickness symptoms: Effectively prevent seasickness, motion sickness, air sickness and other travel-related motion sickness. Put on these anti-motion sickness glasses and stare at a stationary object like a book or cellphone for about 10-14 minutes to relieve discomfort.2. Design rationale: The level of liquid in the ring changes according to the movement of the vehicle, creating an artificial horizon in the user's field of vision, resynchronizing the eye with the balance system. The operation is simple, safe and has no side effects.3. Material: Made of imported soft, elastic and durable TPE material.With additional nose pads, the glasses will not fall off easily.4. Suitable for adults and children: The one-piece design is suitable for any head size; Easily adjust the size by bending the soft and elastic frame.5.Lightweight and portable: These glasses are small and light, so you can take them with you on the go.SpecificationMaterial: resin color: Black, White Notes:1. Due to manual measurement, please allow 1-3 cm error. Make sure you don't mind before you bid.2.Colors may vary due to different monitors, please understand. Thank you for your support :)