Compatibility and fit - Designed specifically for BYD M6 MK1 (2010-2017) with an external fit. Suitable for side and rear window applications. Function and benefits - Reduces windshield fogging: crack a window with these deflectors to vent moisture, helping maintain clear visibility and fresh air, especially useful in rain or snow. - practical ventilation: enables airflow without fully opening windows, improving comfort during drives and stops. Material and durability - Made from high-quality ABS plastic that withstands high temperatures, wind, rain, and environmental exposure. - Aerodynamic and flexible design that won’t bend or break. Easy installation - No special hardware or drilling required. - Simple, tool-free installation on side and rear windows in seconds; complete setup in minutes. Use scenarios - Rain or snow: vent humidity by cracking a window to keep the windshield clear while keeping rain out. - City driving and stops: enjoy fresh air without fully opening windows. - Parking or idle periods: quick ventilation to reduce stuffiness inside the vehicle.