Durable Material:This luggage is made of lightweight 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 . Hardshell 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. Spinner Wheels:Multi-directional silent spinner wheels of Merax luggage can rotate 360 degree for easy smooth maneuverability and a professional appearance.Both the elderly and children can easily push it. Best choice for travels and business trips. Safe:Side mounted password lock which is opened by a digital combination, avoiding the trouble of losing or forgetting the key. Zippers are not easy to be pierced by sharp tools, that protects your stuffs in luggage and privacy more better. 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. The Merax Luggage Sets Made of lightweight and durable material upgraded with strong resistance to stress, high and low temperatures and impact. Built-in reinforced corner guards provide extra protection and minimize damage. 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.