About TSA Lock: It is a globally universal lock, The keyhole is designed for customs inspection personnel to quickly open the luggage with their master key, and buyers do not need a key but only need to set a password. Super Large Capacity & Multi-Functionality : Different from the regular model, the size ratio of 3:7 can meet super large capacity needs (as picture show)，can accommodate large items such as laptops, sports equipment, hair dryers, electric irons, etc; 22 inches are suitable for long-distance travel of 5-7days, and 30 inches are suitable for going abroad, moving, and so on. Premium High-End Materials: Crafted with Polycarbonate and Aluminum Frame,lightweight easy to carry. Compared to ordinary materials, which is Durable, tough and impact resistant that helps reduce visible scratches and scuffs. Convenient TSA Lock: Experience convenience with our check in luggage. Built-in lock allows TSA authorities to safely unlock and relock the bag for inspection when needed (default code set at 0-0-0). Silent Spinner Wheels: Our suitcase features state-of-the-art, whisper-quiet silent wheels that glide effortlessly across various surfaces. ✅Warm Tips: For convenient transportation, the luggage compartment is specially designed with detachable wheels that need to be installed by yourself. Please refer to the detailed pictures for installation steps! Sturdy Aluminum Frame Corner Protection: The luggage large suitcase is fortified with four sturdy aluminum corner frames, providing an extra layer of protection for your belongings. These corner protectors absorb impact and safeguard your luggage from rough handling during transit, ensuring that your valuables remain intact. 22in Size: 13.1in(33.5 cm) L x 11.4in(29 cm) W x 19.6in(50 cm) H , Weight: 9.5 LB, Capacity: 49L30in Size: 16.1in(41 cm) L x 15.5in(39.5 cm) W x 30.7in(78 cm) H , Weight: 12.8 LB, Capacity: 126L Our luggage available in 22-inch and 30-inch sizes, super large size great for long journeys, international trips, and moving, which offers generous space for all your belongings. Crafted with durable PC and aluminum construction, it combines impact resistance with modern style. Enjoy silent, smooth-rolling wheels and built-in features like a smartphone stand, cup holder, and hook. Plus, four aluminum corner frames provide extra protection for your belongings.