• The carry on luggage Made of lightweight and durable ABS material upgraded with strong resistance to stress, high and low temperatures and impact. Built-in reinforced corner guards provide extra protection and minimize damage for the luggage . • hard case luggage Sets.Large storage space and fully lined interior with zippered compartment to keep your items organized. Low profile top and side handle provide for ease in handling. Note: The 20-inch luggage cannot be expanded. • TSA-approved lock allows the custom to inspect your luggage without having to damage the lock, and eliminate the possibility that a thief could break into your bag by puncturing the zipper. • Multi-directional silent spinner wheels of Merax luggage can rotate 360 degree for easy smooth maneuverability and a professional appearance. • Protective anti-aging feature of built in UV-radiation protection for long lasting usage for years to come. Any problem with the suitcase, please feel free to contact us.