Features: 1. Large Capacity: Compact car heating cup with large capacity, designed to fit most vehicle cup holders securely. 2. Heating Function: Quickly heats water and maintains temperature when plugged into a vehicle's cigarette lighter port. 3. Leak Proof: Integrated leak-proof design ensures reliable performance and helps prevent spills. 4. Constant Temperature: Equipped with electronic constant temperature technology to keep beverages warm. 5. Material: Interior constructed from heat-resistant plastic, exterior made of stainless steel for durability and easy cleaning. Specification: Item Type: Car Heating Cup Material: Inner plastic, outer steel Purpose: Automobile beverage container Weight: Approx. 300g / 10.6oz Package List: 1 x Car Heating Cup Note: Do not attempt to boil water in this product. Using boiling water in a moving vehicle may cause scalding due to sudden stops or bumps.