[TSA Lock] - Protective anti-collision corners on the exterior shell prevent damage from items placed against them, enhancing durability. The two-way deep frame TSA lock system provides secure peace of mind. [Easy Handling and Adjustable Handle] - 360-degree rotating wheel design for effortless maneuverability; multi-stage button lock handle adjusts comfortably for travelers of any height. [USB Port] - Equipped with a USB interface (power bank not included), allowing convenient charging for mobile devices anytime, anywhere. [Multi-functional Cup Holder] - Newly designed cup holder seamlessly integrates with the rotating luggage structure, offering a convenient option to securely place cups during travel without spillage. [Excellent Interior Structure] - Spacious interior with mesh pockets and carry-on bags helps organize essentials better, keeping items tidy during transportation.