The Portabrace <strong>PB-2850FORX</strong> Hard Case has a cubed-foam interior, durable aluminum rail and a comfortable pullout hand grip. It is constructed with a high-performance hard-resin material, reinforced at the corners. Wheeled Hard Cases are smooth rolling, have a pressure relief valve and have easy to operate latches. Wheeled hard cases are also ideal for transporting and protecting video, audio, and photographic equipment.</p><p><strong>Please note: the PB-2850FORX is not a watertight / airtight case due to the process of adding the custom off-road wheels and axle. The case does not lose any protective strength or integrity but it will allow air to the main storage area.</strong></p>