Excellent material, corrosion resistance: Stainless steel has excellent corrosion resistance, is not easy to rust, can be used for a long time. Stainless steel material does not react with the beverage to ensure the safety and health of drinking water. Thermal insulation and cold protection, four seasons: Most of the neck small fans are equipped with multi-speed wind speed adjustment function, can freely adjust the air volume according to personal preferences and ambient temperature, to meet the needs of different scenes. Four seasons: summer can be cold, winter can be insulated, can be used all year round. Good sealing, leakage and spill prevention: Sealing cover design: equipped with a good sealing lid, can effectively prevent liquid leakage, avoid dirty car. Leak-proof design: Some models also come with leak-proof rings to further improve sealing performance. Diverse styles, beautiful and practical: diverse materials: in addition to stainless steel, there are some styles of surface spraying or electroplating treatment, the appearance is more beautiful. Portable and easy to clean: Portability: Most stainless steel car cups are small and easy to carry. Easy to clean: Stainless steel is easy to clean, just rinse with water.