Usage Tips:Premium Quality and Dimensions: Each vent in this 8-pack kit measures 8 inches in length and 2.6 inches in width, crafted from robust heavy-duty plastic material that ensures durability and long-lasting performance in weather conditions.Effortless Installation Process: Installing these vents is a breeze; they require only three bolts for secure attachment to your shipping container. The strategic design of the vent holes, positioned downwards, facilitates easy setup and efficient operation.Enhanced Ventilation advantages: By promoting flow air ventilation, these vents significantly mitigate issues like excessive heat, humidity, and pressure inside shipping containers. This improved air flow also helps in reducing condensation, safeguarding your cargo.Optimal Sealing with Rubber Gasket: Each vent is equipped with a high-quality rubber gasket that ensures a tight seal, effectively preventing rainwater intrusion and protecting the contents of your container from water damage.Innovative Design for Maximum Efficiency: The specially designed convex shape of the vents with bottom-facing, inward-tilting holes enhances functionality, preventing water entry by utilizing , while promoting better air circulation within the container.The actual product may have slight color differences or differences, which does not affect use.Colour:GrayMaterial:plasticPackage Contents:8 x Shipping Container Air Vent KitOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.