[Robust Construction] Carefully crafted from high-impact ABS material, each kit includes 8 vents measuring 8 inches in length and 2.6 inches in width. Designed for secure, fixed installation that seamlessly fits shipping containers. [Effortless Installation] Easy to install with just 3 bolts per vent (bolts not included) for a stable fit. Pre-drilled holes are strategically positioned to help prevent water ingress, improving efficiency and durability on any container. [Optimized Air Flow] Enhances air circulation inside storage or shipping containers. Helps reduce heat and humidity, balance internal air pressure, and minimize condensation buildup. [Weather-Resistant Design] Features a reliable rubber gasket for effective sealing, helping to prevent rainwater and other environmental elements from entering the container. [Innovative Downward Tilt] Unique design with inward-tilting holes at the bottom helps deter water entry while promoting optimal airflow, providing added protection against moisture and air-related issues. Note: The actual product may vary slightly in color, which does not affect functionality. Color: As shown in photo Material: Plastic Package Contents: 8 x Truck Ventilation Covers (Other accessories not included) Note: Lighting and monitor settings may cause slight color variations. Measurement may vary by +/- 1-3 cm.