6 Piece Luggage Sets:The luggage set of 4 pieces offers 16" small carry on luggage, 20" carry on luggage, 24" medium checked luggage 28" large checked luggage and 1 duffel bag 1 toiletry bag, can be nested together for easy storage. Top Quality Luggage Sets: Made of brand new ABS materials for hardshell, which make the luggage more durable, lighter and impact-resistant. Features textured finish to prevent against scratches, keeping cases beautiful after a trip. 16in or 20in luggage is best for carry on. 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. The Merax Luggage Sets Made of lightweight and durable PC 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.