Peli Protector Cases are made from Copolymer Polypropylene, using an open cell core and solid wall construction, which is actually stronger and lighter than a solid core wall. Peli's moulded structure, multiple heavy duty 'fins' and flexibility offer extra protection so that the impact of a shock is evenly dispersed, keeping the internal equipment safe. Stainless steel pins are used for hinges and handles. Their Double-Step latches are smarter and easier to open: the patented design works like a pry bar to start the release and offers plenty of leverage to open with a light pull. You will know it's a Peli Case by its distinctive dual band top surface and pressure valve. Travel light with heavy protection.