Expands up to 2 Inches: Offers expandable capacity, providing up to 2 inches of additional space. Durable, Hard Shell: Crafted from durable 100% polycarbonate shell for long-lasting use.TSA-Approved Lock: Ensures hassle-free travel with the TSA-approved lock.Introducing our extra-large trunk suitcase with spinner wheels—a must-have for overpackers. This rolling luggage features a deep and durable hardside exterior that exudes effortless chic. Perfect for families, bulky items, or extra-long trips, it's designed to accommodate all your packing needs. Go ahead, pack it on and embark on your journey with ease.Exterior Dimensions (Including Wheel): 31.5" x 15.5" x 12.75"