Compatibility: Premium wind deflectors with external fit designed specifically for BYD Seagull MK1 2023. Function: When you crack the window, the deflectors help vent moisture and reduce windshield fogging, delivering clear sight and fresh air. Especially effective in rain or snow. Material: Made from high quality ABS plastic to withstand high temperatures, wind, rain and road exposure. Aerodynamic and flexible design resists bending or breaking. Easy installation: No special hardware or drilling required. Practical design allows installation on side and rear windows in seconds, with simple setup in minutes. Use scenarios: - Rainy or snowy days when you want ventilation without fogging the windshield. - Everyday driving to enjoy fresh air with the window cracked. - Long trips to reduce interior condensation and maintain comfortable cabin air.