Features: Crafted from high strength ABS plastic, this marine ventilation window boasts exceptionally corrosions resistance against saltwater, extreme temperatures ( -30°C to 80°C), and UV exposure, ensuring long lasting durability in harsh marine or motorhome environments. The adjustable louver design enables customizable airflows direction for efficient ventilation while blocking rain and debris, paired with standardized screw holes for effortless installation as a direct replacement for outdated units. Ideal for boat owners, motorhome enthusiasts, and marine maintenance professional seeking reliabled, weatherproof ventilation solution that seamlessly integrate with existing ship or vehicle interiors. Perfectly functions in humid compartments, coastal vessels, or mobile homes where moisture control and freshning air circulation are critical to maintaining comfortable living/working spaces. Safety enhanced with smooth, burr less edges and black/white color option, this ventilation louver combines practical marine grade performances with aesthetic versatility for discreet visual harmonies. Specifications: Component: ABS plastic Color: black\white Weight: 29g Size:Approx.8.5x8.5cm/3.35x3.35inch Size:Approx.13x13cm/5.12x5.12inch Size:Approx.14x14cm/5.51x5.51inch Package Includes: 1pcs Marine Ventilation Panel 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.