GERMAN POLYCARBONATE: Assembly Stark is crafted with resilient German polycarbonate, a timeless hard shell trolley bag crafted for impact resistance and long-haul durability.- ENHANCED SECURITY: Built-in TSA-approved combination lock and anti-theft double zipper pulls secure your belongings at check-in, boarding, and every airport in between.- PACKING CAPACITY , 510 DAYS: The 24-inch Stark hard luggage check-in suitcase is ideal for 510 day trips , generous internal space in an unbreakable hard shell built for the traveller who values longevity as much as performance.- WARRANTY: 3-Year Stress-Free Warranty Against Manufacturing Defects. We're there for your journeys.