The olive drab green iM3300 Storm Shotgun Case from Pelican is injection - molded case made of HPX resin and specialized molded foam interior designed for Pump or Semi-automatic shotguns. It features an open cell core wall construction, which are stronger and lighter than a solid core walls. The open cell core walls are made of hard layers HPX resin inside and outside a wall with one softer layer of HPX resin in the middle. This sandwiched design provides improved structural integrity and resistance to punctures or cracking. There is a Vortex valve which equalizes inside and outside air pressures and helps preventing water from entering. The six Press & Pull latches provide a secure locking mechanism to keep your equipment. They stay locked under impact or strain but can be easily opened with the push of a button. The case has molded-in hasps that allow the addition of standard size padlocks. The wheels are in-line type and feature steel bearings and stainless steel pins are used for hinges and handles. The handles features a solid core, double layer design with a soft grip. The new Double-Throw latches are smarter and easier to open: it's the classic 'C' clamp design with a secondary movement that works like a pry bar to start the release and offers plenty of leverage. Metal reinforced padlock protectors provide added strength and extra security against cutting and theft. The secret is the tongue-and-groove fit with Polymer o-ring acting as a waterproof seal.