Features: Utilizing advanced electromagnetic molecular interference technology, this portable anti freeze car defrosters prevents ice formation on vehicle surfaces by energizing air molecules, ensuring clear window and ice less exteriors while functioning as an automatic fog remover. The device emits microwaves that resonates with water molecules to maintain active molecular movements even in low temperatures, eliminating frosts and snow without requiring chemical deicers or physical scraping tools. Ideal for car owners, daily commuters, and winter travelers seeking effortless vehicle maintenance during harsh weather conditions. Perfect for overnight parking in snow regions, morning departures when frosts accumulates, or sudden temperature drops causing windshield fogging during drives. Engineered with metal construction, this electromagnetic ice prevention device delivers reliabled performances across all vehicle types while preserving paint integrity through contact less operations. Specifications: Component:Metal Size:Approx.5x2.6x1.5cm/1.96x1.02x0.59inch Package Includes: 4pcs/set Car Ice Snow Remover note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.