BLACK TECHNOLOGY: Glasses for motion sickness has no lens but with liquid glasses circle. The level of this liquid in the circle varies according to the moves of the vehicle and creates an artificial horizon in the user's vision, which re-synchronizes the eyes with balance system. No drugs, no side effects. Simple, Safe & Natural Black Technology Proven Effective. PRODUCT ADVANTAGE: Motion sickness glasses can be used by car or boat,riding, boating, playing high-altitude rotating games, flying, playing games, wearable video games. effective prevention of sea sickness,car sickness, aircraft sickness and any other travel sickness. With nose pad which ensures that glasses will not easily fall off and are comfortable for all head sizes and shapes. MATERIAL: Motion sickness goggles are made of imported soft, elastic, and durable TPE material. , with strong arbitrary and antioxidant capabilities, can be used for a long time,,foldable, removable, small size, ultra-lightweight, travel can be carried around.